x+2x+x+20=180 what is x

Answer: x=40

Step-by-step explanation:

x+2x+x+20=180

first you combine the like terms which are (x, 2x, x) and get 4x.

now you have 4x+20=180

next you subtract 20 on both sides:

4x+20=180

     -20 -20

and get 4x=160

finally you divide 4 on both sides and get a final answers of x=40

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