someone please solve this 3n+9n=-2(7-4n)-(1+n)

Answers

Answer 1

Answer:

n= -3

Step-by-step explanation:

[tex]3n+9n=-2(7-4n)-(1+n)\\\\\mathrm{Add\:similar\:elements:}\:3n+9n=12n\\\\12n=-2\left(7-4n\right)-\left(1+n\right)\\\\\mathrm{Expand\:}-2\left(7-4n\right)-\left(1+n\right):\quad 7n-15\\\\12n=7n-15\\\\\mathrm{Subtract\:}7n\mathrm{\:from\:both\:sides}\\\\12n-7n=7n-15-7n\\\\Simplify\\\\5n=-15\\\\\mathrm{Divide\:both\:sides\:by\:}5\\\\\frac{5n}{5}=\frac{-15}{5}\\\\Simplify\\\\n=-3[/tex]

Answer 2

Answer:

n=-3

  sorry no steps


Related Questions

I need help solving 8g+10=35+3g. Please help!!

Answers

Answer:

g = 5

Step-by-step explanation:

Step 1: Write out equation

8g + 10 = 35 + 3g

Step 2: Subtract 3g on both sides

5g + 10 = 35

Step 3: Subtract 10 on both sides

5g = 25

Step 4: Divide both sides by 5

g = 5

It takes 31 pounds to plant 5 acres how many pounds are needed to plant 1 acre?

Answers

Answer:

6.2 Pounds

Step-by-step explanation:

Divide 31 by 5 to get the number for one acre. The answer is 6.2.

Hope this helps! :)

There are nine water bottles in​ Devin's refrigerator. He adds three full boxes of water bottles to the refrigerator. Then he adds two more boxes that each has 1 fewer bottle than a full box. When he is​ done, there are 67 bottles in the refrigerator. Write and solve an equation to find the number of bottles in a full box.
Write the equation.

Answers

Answer:

There are 12 bottles of water in a full pack.

Step-by-step explanation:

look at screen shot for answer.

How do I do this problem? Evaluate each expression
(-4)-(-6)-(2-1)

Answers

Answer:

1

Step-by-step explanation:

(-4) - (-6) - (2-1)

-4 + 6 -2 +1

1

(3,-7) and (4,0) distance formula

Answers

Answer: approximately 7.07

Step-by-step explanation:

The distance formula is [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]. Since we are given teo points, we can plug them in and solve.

[tex]d=\sqrt{(4-3)^2+(0-(-7))^2}[/tex]       [parenthesis]

[tex]d=\sqrt{(1)^2+(7)^2}[/tex]                         [exponent]

[tex]d=\sqrt{1+49}[/tex]                                [add]

[tex]d=\sqrt{50}[/tex]                                      [square root]

[tex]d=7.07[/tex]

The distance is approximately 7.07.

cailtyn started reading at 9:45 and ended at 10:37 how long did she read for

Answers

Answer:

52 minutes

Step-by-step explanation:

9:45 to 10:00 is 15 minutes, and 10:00 to 10:37 is 37 minutes.

37+15=52

Time taken for reading is 52 minutes

Time based problem:

Find:

Time taken for reading

Given time;

Start at 9:45 and ended at 10:37

Computation:

Change into minutes

9:45 = 9[60] + 45 = 540 + 45 = 585 minutes

10:37 = 10[60] + 37 = 600 + 37 = 637 minutes

Time taken for reading = 637 - 585

Time taken for reading = 52 minutes

Find out more information about 'Time'.

https://brainly.com/question/26941752?referrer=searchResults

If m∠PTQ = 3y –10 and m∠QTR = y, find the value of y so that ∠PTR is a right angle

Answers

Answer:

y = 25

Step-by-step explanation:

Given that,

m∠PTQ = 3y –10 and m∠QTR = y

We need to find the value of y so that ∠PTR is a right angle.

For a right angle, one of the angle is 90 degrees. The sum of the angle of a triangle is equal to 180 degrees. So,

3y –10 + y + 90 = 180

Taking like terms together

3y+y = 180 -90 +10

4y = 100

y = 25

So, the value of y is 25.


Find the slope of the line perpendicular to the given line.
y=-3/5x+1

Answers

Answer: y= 3/5x+1

Step-by-step explanation: if you want to check if its perpendicular go on Desmos graphing calculator on goolge and plug both equations:)

If the area of a rectangle is 64 then the length is 8 and the width is 8 counter examples

Answers

Answer:

64

Step-by-step explanation:

GETT IT RIGHT AND GET BRAINLiEST

Answers

Answer:

solution is -3

Step-by-step explanation:

z=69

69-72

-3

Answer:

[tex]-3[/tex]

Step-by-step explanation:

[tex]z=69[/tex]

Substitute this into [tex]z-72[/tex]:

[tex]69-72=-3[/tex]

Can someone please help me out with this

Answers

Answer:  hope this helps!!

Step-by-step explanation:

#9.     7 > -8

7 is bigger

#10.    =

#11.     <

#12.    >

#13.     3 is the answer

#14.     28 is the answer

#15.      90

#16.       3

16.6 repeating as a fraction ​

Answers

Answer:

1/6

I apologize if it is wrong.

The repeating decimal 16.666... as a fraction is 50/3.

We have,

Consider

x = 16.6666... ______(1)

Multiply 10 on both sides.

10x = 10 x 16.6666...

10x = 166.666..... ______(2)

Subtract (1) from (2).

10x - x = 166.666..... - 16.666...

9x = 150

x = 150/9

x = 50/3

Thus,

The repeating decimal as a fraction is 50/3.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ6

Jeanne has $12.50 in her bag. How much money does she need to buy a game that costs $72.60?

Answers

Answer:

60.1

Step-by-step explanation:

Just get 72.60 and subtract 12.50

Given: f(x) = 2x + 5 and g(x) = x2 and h(x) = -2x



h(g(f(x))) = _______

Answers

Answer:

Step-by-step explanation:

f(x)= 2x + 5

g(2x + 5)= (2x + 5)^2 = 4x^2 + 20x + 25

h(4x^2 + 20x + 25)= -2(4x^2 + 20x + 25)= -8x^2 -40x - 50

Answer

Step-by-step explanation:

4. Which value of n makes the equation 6.4n – 1.2 + 3n + 8.2 = 19.22 true?

Answers

n=1.3
Picture attached for explanation

Evaluate the expression 9(a + 2b) + c for a = -3, b = -2, and c = 1.

A. -62
B.-91
C. 46
D. 64

it’s due by 11:59 PM on wednesday

Answers

If you sun in the numbers you get
9(-3+2x-2)+1

Working within the parenthesis first, you can simplify to
(-3-4)

Then to
(-7)

Now we have
9(-7)+1

Next you multiple 9 by -7

This gives you -63+1

So the answer is -62 or A

Somebody helppp answer the circled numbers!!!!!
Grade5math

Answers

Answer:

for 29. the answer is 10×10×10×10×10×10

for 33. the answer is 5³,3⁵,10³

for 35. the answer is 1⁵,5¹,10¹

hope it helps you mate please mark me as brainliast...

Answer:

29: 1,000,000

33: 1,000. 243. 125

35: 1. 5. 10

Step-by-step explanation:

floor gang aooh sub to pewdiepie

how do you turn someone to brainiest

Answers

Answer:

You click on the crown button near the thanks/heart button

Step-by-step explanation:

2. The table shows the amount
spent on tomatoes at three different stands
at a farmer's market. Which stand sold their
tomatoes at the least
expensive price per
pound, and what is that price? Round to the
nearest cent, if necessary. (Lesson 1)
Stand
Weight (lb)
Cost ($)
A
3
4
2.00
B
mit - ab
3.45
с
14.85

Answers

I think the answer might be B

40x-20=100+10x x= Please help asap!

Answers

Answer:

x= 4

Step-by-step explanation:

40x-20=100+10x

Subtract 10x and add 20 both sides:

30x= 120

x=4

i need to do those exercises but i’m not sure how

Answers

Answer:

Q4. a) 2000 cm³

b) 0.982 cm³ (3 s.f.)

c) 183 cm³ (3s.f.)

d) 2196 cm³

e) 2380 cm³

Q5. 8376 handles

Step-by-step explanation:

Please see the attached pictures for the full solution.

The three steps of the problem solving process are

Answers

Understand, implement, strategize

1.Which property justifies the statement if y=7 then 7=y?
A. reflexive property
B. identity property
C. symmetric property
D. transitive property
2.Which set of number is closed under subtraction
A. Natural number
B. Integer
C. Irrational number
D. odd numbers
3. Which property justifies the statement (a-b)*0=0
A. Inverse property
B. Associative property
C. Distributive property
D. zero product property​

Answers

Answer:

I believe that is the symmetric property.

Solve the equation.

y +8=-11

y=

Answers

Steps to solve:

y + 8 = -11

~Subtract 8 to both sides

y = -19

Best of Luck!

What number is the opposite of 75

Answers

- 75 is the opposite of 75, because they have the same absolute value (distance from 0), and they on different sides of zero.



3. Burns has a bank account with a balance of $65.00. Burns paid $35.00 to
his credit card and he spends $40.00 for a hamburger. What would Burns's
bank balance be, after both debits were paid?

Answers

60 dollars

65+35=100

100-40=60

Brainliest?

15. PART A: Write an algebraic expression for each verbal expression "the product of 9 and t squared, increased by the sum of the square of t and 2" *

Answers

Answer:

9t²+(t²+2)

Step-by-step explanation:

The product of 9 and t squared is expressed as 9×t² (product means multiplication)

9×t² = 9t²

Also, sum of the square of t and 2" is expressed as t² + 2 (sum means addition)

Finally, if the product of 9 and t squared, increased by the sum of the square of t and 2", the final expression will be the sum of the two expressions gotten. {Increment also means addition} i.e 9t²+(t²+2)

The algebraic expression is 9t²+(t²+2)

I need help on numbers 1 & 2 please! it’s due at 11:59 tonight

Answers

Answer:

I'm not completely sure on number 2 and I don't want to give you a wrong answer but 1 is y=6.5x

I'm not completely sure on number 2 and I don't want to give you a wrong answer but 1 is y=6.5x

What is the square root of 1/23?

Answers

0.04347826086

Step-by-step explanation:

this is the anwser,just round to whatever you need to

Answer:

0.20851

Step-by-step explanation:

[tex]\sqrt{\frac{1}{23} } \\\\Refine \\=0.20851\dots[/tex]

. an 8 degree rise in temperature

Answers

That's increased level of warming

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