3y+18=-3

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Solution for 3y+18=-3 equation: 



3y+18=-3

We move all terms to the left:

3y+18-(-3)=0

We add all the numbers together, and all the variables

3y+21=0

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

3y=-21

y=-21/3

y=-7

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