18-y=4(y-3)

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Solution for 18-y=4(y-3) equation: 



18-y=4(y-3)

We move all terms to the left:

18-y-(4(y-3))=0

We add all the numbers together, and all the variables

-1y-(4(y-3))+18=0



We calculate terms in parentheses: -(4(y-3)), so:

4(y-3)

We multiply parentheses

4y-12

Back to the equation:

-(4y-12)



We get rid of parentheses

-1y-4y+12+18=0

We add all the numbers together, and all the variables

-5y+30=0

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

-5y=-30

y=-30/-5

y=+6

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