12-y=18-3y

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Solution for 12-y=18-3y equation: 



12-y=18-3y

We move all terms to the left:

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

We add all the numbers together, and all the variables

-y-(-3y+18)+12=0

We add all the numbers together, and all the variables

-1y-(-3y+18)+12=0

We get rid of parentheses

-1y+3y-18+12=0

We add all the numbers together, and all the variables

2y-6=0

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

2y=6

y=6/2

y=3

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