7(-4x-5)=21

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Solution for 7(-4x-5)=21 equation: 



7(-4x-5)=21

We move all terms to the left:

7(-4x-5)-(21)=0

We multiply parentheses

-28x-35-21=0

We add all the numbers together, and all the variables

-28x-56=0

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

-28x=56

x=56/-28

x=-2

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