7(x+20)-(x+20)=180

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Solution for 7(x+20)-(x+20)=180 equation: 



7(x+20)-(x+20)=180

We move all terms to the left:

7(x+20)-(x+20)-(180)=0

We multiply parentheses

7x-(x+20)+140-180=0

We get rid of parentheses

7x-x-20+140-180=0

We add all the numbers together, and all the variables

6x-60=0

We move all terms containing x to the left, all other terms to the right

6x=60

x=60/6

x=10

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