3(3y+4)+4y=-9

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Solution for 3(3y+4)+4y=-9 equation: 



3(3y+4)+4y=-9

We move all terms to the left:

3(3y+4)+4y-(-9)=0

We add all the numbers together, and all the variables

4y+3(3y+4)+9=0

We multiply parentheses

4y+9y+12+9=0

We add all the numbers together, and all the variables

13y+21=0

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

13y=-21

y=-21/13

y=-1+8/13

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