2x-(-7x)=-63

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Solution for 2x-(-7x)=-63 equation: 



2x-(-7x)=-63

We move all terms to the left:

2x-(-7x)-(-63)=0

We add all the numbers together, and all the variables

2x-(-7x)+63=0

We get rid of parentheses

2x+7x+63=0

We add all the numbers together, and all the variables

9x+63=0

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

9x=-63

x=-63/9

x=-7

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