12-4y=2(y-9)

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Solution for 12-4y=2(y-9) equation: 



12-4y=2(y-9)

We move all terms to the left:

12-4y-(2(y-9))=0



We calculate terms in parentheses: -(2(y-9)), so:

2(y-9)

We multiply parentheses

2y-18

Back to the equation:

-(2y-18)



We get rid of parentheses

-4y-2y+18+12=0

We add all the numbers together, and all the variables

-6y+30=0

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

-6y=-30

y=-30/-6

y=+5

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