-8(x+7)=3x+21

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Solution for -8(x+7)=3x+21 equation: 



-8(x+7)=3x+21

We move all terms to the left:

-8(x+7)-(3x+21)=0

We multiply parentheses

-8x-(3x+21)-56=0

We get rid of parentheses

-8x-3x-21-56=0

We add all the numbers together, and all the variables

-11x-77=0

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

-11x=77

x=77/-11

x=-7

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