7x-x=-20+2x

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



7x-x=-20+2x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

6x-(2x-20)=0

We get rid of parentheses

6x-2x+20=0

We add all the numbers together, and all the variables

4x+20=0

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

4x=-20

x=-20/4

x=-5

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