-7(8-2x)-7=21+2x

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Solution for -7(8-2x)-7=21+2x equation: 



-7(8-2x)-7=21+2x

We move all terms to the left:

-7(8-2x)-7-(21+2x)=0

We add all the numbers together, and all the variables

-7(-2x+8)-(2x+21)-7=0

We multiply parentheses

14x-(2x+21)-56-7=0

We get rid of parentheses

14x-2x-21-56-7=0

We add all the numbers together, and all the variables

12x-84=0

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

12x=84

x=84/12

x=7

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