-7(x+8)=-21

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



-7(x+8)=-21

We move all terms to the left:

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

We add all the numbers together, and all the variables

-7(x+8)+21=0

We multiply parentheses

-7x-56+21=0

We add all the numbers together, and all the variables

-7x-35=0

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

-7x=35

x=35/-7

x=-5

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