3(y+6)=21

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



3(y+6)=21

We move all terms to the left:

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

We multiply parentheses

3y+18-21=0

We add all the numbers together, and all the variables

3y-3=0

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

3y=3

y=3/3

y=1

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