6(y+4)=3y-21

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Solution for 6(y+4)=3y-21 equation: 



6(y+4)=3y-21

We move all terms to the left:

6(y+4)-(3y-21)=0

We multiply parentheses

6y-(3y-21)+24=0

We get rid of parentheses

6y-3y+21+24=0

We add all the numbers together, and all the variables

3y+45=0

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

3y=-45

y=-45/3

y=-15

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