-3(2x+7)+6x=-21

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Solution for -3(2x+7)+6x=-21 equation: 



-3(2x+7)+6x=-21

We move all terms to the left:

-3(2x+7)+6x-(-21)=0

We add all the numbers together, and all the variables

6x-3(2x+7)+21=0

We multiply parentheses

6x-6x-21+21=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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