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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-6y-(-6y+21)+21=0

We get rid of parentheses

-6y+6y-21+21=0

We add all the numbers together, and all the variables

=0

y=0/1

y=0

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