3y+6=y+15

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Solution for 3y+6=y+15 equation: 



3y+6=y+15

We move all terms to the left:

3y+6-(y+15)=0

We get rid of parentheses

3y-y-15+6=0

We add all the numbers together, and all the variables

2y-9=0

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

2y=9

y=9/2

y=4+1/2

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