15-y=2(y+3)

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Solution for 15-y=2(y+3) equation: 



15-y=2(y+3)

We move all terms to the left:

15-y-(2(y+3))=0

We add all the numbers together, and all the variables

-1y-(2(y+3))+15=0



We calculate terms in parentheses: -(2(y+3)), so:

2(y+3)

We multiply parentheses

2y+6

Back to the equation:

-(2y+6)



We get rid of parentheses

-1y-2y-6+15=0

We add all the numbers together, and all the variables

-3y+9=0

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

-3y=-9

y=-9/-3

y=+3

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