21+4y-6=16y-12-3y

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Solution for 21+4y-6=16y-12-3y equation: 



21+4y-6=16y-12-3y

We move all terms to the left:

21+4y-6-(16y-12-3y)=0

We add all the numbers together, and all the variables

4y-(13y-12)+21-6=0

We add all the numbers together, and all the variables

4y-(13y-12)+15=0

We get rid of parentheses

4y-13y+12+15=0

We add all the numbers together, and all the variables

-9y+27=0

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

-9y=-27

y=-27/-9

y=+3

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