-13-x=x+7

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Solution for -13-x=x+7 equation: 



-13-x=x+7

We move all terms to the left:

-13-x-(x+7)=0

We add all the numbers together, and all the variables

-1x-(x+7)-13=0

We get rid of parentheses

-1x-x-7-13=0

We add all the numbers together, and all the variables

-2x-20=0

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

-2x=20

x=20/-2

x=-10

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