10-(x-7)=20

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Solution for 10-(x-7)=20 equation: 



10-(x-7)=20

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(x-7)-10=0

We get rid of parentheses

-x+7-10=0

We add all the numbers together, and all the variables

-1x-3=0

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

-x=3

x=3/-1

x=-3

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