-7(2x+3)=21

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Solution for -7(2x+3)=21 equation: 



-7(2x+3)=21

We move all terms to the left:

-7(2x+3)-(21)=0

We multiply parentheses

-14x-21-21=0

We add all the numbers together, and all the variables

-14x-42=0

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

-14x=42

x=42/-14

x=-3

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