Combine like terms to simplify each expression.
1) -3x + 7x

Answers

Answer 1

Answer:

4x

Step-by-step explanation:

-3x + 7x

(-3 + 7)x

4x

Answer 2

Answer:

4x

Step-by-step explanation:

to make it easier, remove the x:

-3+7

Add:

4

Put the X back:

4x

This method will not always work for every problem.


Related Questions

-3y-2=7 what is the value of y

Answers

Answer:

y = -3

Step-by-step explanation:

Add 2 to each side to isolate the -3y. Doing this leaves you with -3y=9. You then divide each side leaving you with y = -3

Answer:

The equation has one solution at which y = -3.

Step-by-step explanation:

To find the value of y, we need to isolate it from the rest of the equation.

Add 2 to both sides of the equation.Divide by -3 on both sides of the equation.Simplify the equation if necessary.

[tex]\displaystyle{-3y-2=7}\\\\-3y = 9\\\\\bold{y = -3}[/tex]

We can check to make sure that y = -3 by substitution.

[tex]\displaystyle{-3(-3)-2 = 7}\\\\9-2=7\\\\7= 7 \ \checkmark[/tex]

Because we got a true statement, we can determine that y = -3.

Maddox is stacking cans to make a display at the grocery store. The bottom row of the stack has 20 cans. Each row has 4 fewer cans than the row below it until there are no cans left.

How many rows of cans are in Maddox’s stack

Answers

Answer: 5

Step-by-step explanation:

Which graph represents the equation y=−12x+1?

Answers

Answer:

Graph the equation of the line for the equation , y = 3x-12.

Step-by-step explanation:

hope this helps

HELP ASAP The number of hours you study for an exam affects your grade. What is a reasonable value of the range?
A) 75
B) 1.25
C) -30
D) 1/2

Answers

Answer
B I could be wrong
Explanation

What is the solution to the equation?

2(x + 7)2/3 = 8
A. -15 and 1
B. -15
C. 1
D. no solution

Answers

No solution (D)
Answer = -1

Answer:

-1 option D (no solution)

Step-by-step explanation:

2(x + 7)2/3 = 8

2(X+7)2/3=8

4(X+7)=24

4x+28=24

4x=24-28

4x=-4

X=-4/4

X=-1

So the answer is -1

Mary went to the local market to purchase some fruit. Each box of
oranges sold for $3 and each box of pears for $5. Mary purchased a total
of 18 boxes of fruit for $68. How many boxes of oranges did she
purchase?

Answers

Answer:

11

Step-by-step explanation:

11 BOXES OF ORANGES IS $33

7 BOXES OF PEARS IS $35

WHICH EQUALS $68

MEANING THERE IS 11 BOXES OF ORANGES

Write the following fractions in order of size
1/3
3/4
1/4
7/12
1/2
Start with the smallest fraction.​

Answers

Ans wer 7/12 3/4 1/3 1/2

Step-by-step explanation:

What is the range of the function graphed below?

Answers

The range is all possible y values. In this function, range is from -3 < y
* the

Factorise fully : 12x-8
please help :(

Answers

Answer:

-96 :)

Step-by-step explanation:

12 x (-8) = -96

if there is one negative in the problem the answer will be negative.

Answer: 4(3x-2)
12x-8
=4(3x-2)

Which describes how to graph h(x)= –RootIndex 3 StartRoot x EndRoot + 3 using transformations of the parent function? Reflect over the horizontal axis, and then translate the graph right 3 units. Reflect over the horizontal axis, and then translate the graph up 3 units. Reflect over the vertical axis, and then translate right 3 units. Reflect over the vertical axis, and then translate up 3 units.

Answers

Reflect over the horizontal axis, and then translate the graph up 3 units

Answer: Reflect over the horizontal axis, and then translate the graph up 3 units.

Solve the following equation for a.
n=b/a+3.

a=

Answers

Answer:

the answer is a=b/n-3

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

The graph of the function B is shown below. If B(x) = -1, then what is x?
1
2
-1

Answers

Answer:

x = 2

Step-by-step explanation:

B(x) = - 1 means what is the value of x for y = - 1

This is the dot positioned at (2, - 1 )

with x = 2

Answer: its the first one

Step-by-step explanation:

hope thats what your lookinf for

5. Which number is irrational? 3 (1) V16 (2) V12 (3) (4) 0.50

Answers

Answer:

(3)√12

Step-by-step explanation:

The other numbers are not continuous

One number is eight more than another. If their sum is increased by 17, the result is 95. Find the numbers.

Answers

Answer:

No. are 35&43

Step-by-step explanation:

Let the one no. Be= X

Then the other no.= X+8

Sum of both no.= X+ X+8= 2X+8

When sum is increased by 17 = 2X+8+17=95

2X+25=95

2X=70

X=35

Other no=X+8= 35+8=43

(Please help!!) Arnold is paid a graduated commission on sales. He earns 7% on sales up to $10,000 and 10% on sales over that amount. His goal is to make $2,500 next month. How much will he need to sell?

Answers

Answer:

Step-by-step explanation:

10000*7%= $700.00

2500-700=1800

1800 is 10% of 18,000

So 18,000 +10,000 = 28,000 in sales is needed to get $2,500 in commission.

Help Really quick
The table shows data collected from 14 people.

Shoe Size, x 8.5 9 9 9.5 10 10 10.5 10.5 11 11 11 12 12 12.5
Height (inches), y 66 68.5 67.5 70 70 72 71.5 70 71 71.5 73 73.5 74 74
Determine the correlation coefficient for the data. Round to the nearest hundredth.

r=

Answers

Answer:

i need the answer ;(

Step-by-step explanation:

The length of a rectangle is 10 more than 10 twice the width , if the perimeter is 80inches find the length the width

Answers

Answer:

The width is 10 inches

The length is 30 inches

Step-by-step explanation:

Perimeter of a Rectangle

The perimeter of a rectangle of length L and width W is calculated as follows:

P = 2L + 2W

It's given the length of a rectangle is 10 more than twice the width:

L = 2W + 10

Substituting into the formula of the perimeter:

P = 2(2W + 10) + 2W

Operating:

P = 4W + 20 + 2W

P = 6W + 20

It's given this perimeter is 80 inches, thus

6W + 20 = 80

Subtracting 20:

6W = 80 - 20 = 60

Dividing by 6:

W = 60 /6 = 10

Since :

L = 2W + 10

L = 2*10 + 10

L = 30

The width is 10 inches

The length is 30 inches

Simplify to create an equivalent expression. 617 - 3y) + 6(y + 1)​

Answers

You have to simplify

Answer:

623+3y

Step-by-step explanation:

You distribute the 6 then you add the ys and the numbers together

what is 0.144444444444 as a fraction

Answers

Answer:

18/125

Step-by-step explanation:

Jackie solved the equation by completing the square.

x^2−8x+14=0
Which equation shows one of the steps Jackie could have taken to complete the square?

Question 1 options:

x^2−8x+64=−14

x^2−8x+16=−14

x^2−8x+64=−14+64

x^2−8x+16=−14+16

Answers

A is the correct answer.

1/2 of the sum of a number and 10

Answers

Answer:

1/2(x+10)

Step-by-step explanation:

2. A set of barbells consist of red and blue discs. Discs with the same color have the same mass. Using a balance,
Lia found that 7 blue discs balance 1 red disc and a 5kg mass, while 2 blue discs and a red disc balance a 4kg
mass. Find the masses of the red and blue discs. (2kg, 1kg)

Answers

Let r be the mass of a red disc and b the mass of a blue disc.

7 blues have the same mass as 1 red along with a 5 kg mass, so

7b = r + 5

7b - r = 5

2 blues and 1 red have the same mass as a 4 kg mass, so

2b + r = 4

Solve for b and r . Notice that adding the equations together eliminates r :

(7b - r) + (2b + r) = 5 + 4

9b = 9

b = 1

Then

7 • 1 - r = 5

r = 7 - 5

r = 2

So each red disc has a mass of 2 kg, and each blue disc has a mass of 1 kg.

A population of kangaroos is growing at a rate of 2% per year, compounded continuously. If the rate continues, how many years will it take of the population to reach 150% of its current size according to the exponential growth function?

Answers

Answer:

75 years.

Step-by-step explanation:

Divide 150 by 2, that gives you the years.

How do I solve this please?

Answers

Answer:

given us,

n=4

here

3^-n+1-3^-n+2

3^-4+1-3^-4+2

-4+1-4+2

-5

Step-by-step explanation:

we can put value in n .we can power add and subtract then we can cut 3 then power we can add or subtract

Please help!!!!!!!!!!!​

Answers

Answer:

6/72

Step-by-step explanation:

6/72 =0.0833333333

Answer: 2/9 X 3/8

NOW'

2  X 3   =   6   THIS IS THE ANSWER WHEN U MULTIPLY NOW AS PER

9      8        72

THE QUESTION WE NEED TO SIMPLIFY IT....

SOOOOOO LETS SEE FIRST IF WE CAN SIMPLIFY IT......

my method)

6/72 (lets divide num nd deno by 2)

3/36( Ahh! we cn simplify it further now divide by 3)

1/12

Other metthod

6/72 ( DIVIDE BY 6)

1/12

Step-by-step explanation:

Desarrolla el siguiente cuadrado de binomio (2x³ - 6x)²

Answers

Answer:

[tex]4x^{6} - 24x^{4} + 36x^{2}[/tex]

Step-by-step explanation:

Interpreting Unit Rates on Graphs - Item 1820
Questio
The graph shows the temperature of a liquid that is being heated during an experiment
Three of the statements are true. Which is NOT?
Temperature ("C)
(6.5, 26)
Time (min)

Answers

Answer:

what are the statements?

Step-by-step explanation:

Answer:

At this rate, it would take less than 10 minutes for the temperature of the liquid to rise 52°.

Step-by-step explanation:

Points c (-5,8) and d (2,5) lie in line cd, if points c and d are created by translating points c and d left 6 units, what is the slope of line c’

Answers

Answer:

Step-by-step explanation:

Remark

Moving 6 points left is not going to alter the slope (or it shouldn't).

The x value has to have 6 subtracted from it. Leave the y value alone.

Givens

C: (-5-6,8) = (- 11,8)

D: (2-6,5) =  (-4,5)

Formula

m = (y2 - y1)/(x2 - x1)

Solution

m = (8 - 5)/(-11 - - 4)

m = 3 / - 7

m = - 0.429

Check

Let's find the slope of the original points.

(8 -5)/(-5 - 2) = 3/-7 which is the same thing.

Heather has a bag with 3 marbles, 7 tennis balls, 3 apples, and 3 books. What is the ratio of books to tennis balls?
A.
(3/7) or 3:7
B.
(7/8) or 7:8
C.
(4/7) or 4:7

Answers

Answer:

B

Step-by-step explanation:

I hope it's correct and I'm thinking it is,. Sorry if it's not

Answer:

I think A

Step-by-step explanation:

3/7. Or 3:7

Cause there are 3 books and 7 tennis balls

HELP ME OUT PLS AND TY

Answers

Answer:

No, the line does not pass (0,0).

No, the line does not pass (0,0)

Brainliest Appreciated!

Answer:

NoNo

I hope this helps!

Other Questions
Carri is trying to run a certain number of miles by the end of this month. If Carrie is 55% of the way to achieving her goal and she has already run 11 miles, how many miles is she trying to run by the end of this month Hot and cold Wells of a service line should be cleaned and sanitised how many US presidents have died in office? (7x-3) = 5Algebra 2, solve What can you say about an atom with a -2 ion of oxygen-17? WILL GIVE BRAINLIEST A model of a helicopter rotor has four blades, each 3.4 m in length from the central shaft to the tip of the blade. The model is rotated in a wind tunnel at 550 rev/min. What is the radial acceleration of the blade tip, expressed as a multiple of the acceleration g due to gravity? A. (5.72 104)g B. (6.23 102)g C. (1.15 103)g D. (2.25 103)g answer correctly please !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!! Help. Ill give brainliest. How many Stars are In the Milky way Galaxy Describe Justice Ginsburgs impact on the Supreme Courtand the nation Robert Frost's "Dust of Snow" is written usingthird-person limited narrative voicefirst-person narrative voicethird-person objective narrative voicethird-person omniscient narrative voice please help me make a lesson plan. the topic is Zigzag line. and heres the format.A. Objective B. Subject matter C. Learning activities. D. Assessment. E. Reinforcement A diver swims 5.875 feet up to the surface of the water. Which number represents the diver's position in relation to the surface before swimming to the top? -5.9 feet Negative 5 and three-fourthsfeet -58 feet Negative 5 and StartFraction 7 over 8 EndFractionfeet Read "Hope is the thing with feathers" by Emily Dickinson.Hope is the thing with feathersThat perches in the soul,And sings the tune without the words,And never stops at all,And sweetest in the gale is heard;And sore must be the stormThat could abash the little birdThat kept so many warm.I've heard it in the chillest land,And on the strangest sea;Yet, never, in extremity,It asked a crumb of me.Which is true about this poem? Select 3 options.This poem contains an extended metaphor.This poem is a tribute to a small bird.This poem directly compares unlike things.This poem compares a feeling to an animal.This poem uses similes to compare objects. what are the degree & leading coefficient of the polynomial?-23u^3+10-15u-23u^9 Explain the importance of fluids and electrolytes during exercise. I need help with this! What happens every time someone mentions Zeus name or refers to t in Percy Jackson What is the solution to the equation One-fourth x + 2 = negative StartFraction 5 Over 8 EndFraction x minus 5? What are three major technology advancements that made it possible for Amazon to succeed in starting up the industry of online business?