7x-20=2x+20

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Solution for 7x-20=2x+20 equation: 



7x-20=2x+20

We move all terms to the left:

7x-20-(2x+20)=0

We get rid of parentheses

7x-2x-20-20=0

We add all the numbers together, and all the variables

5x-40=0

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

5x=40

x=40/5

x=8

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