-13=7-2x

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Solution for -13=7-2x equation: 



-13=7-2x

We move all terms to the left:

-13-(7-2x)=0

We add all the numbers together, and all the variables

-(-2x+7)-13=0

We get rid of parentheses

2x-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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