18-9=3y

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Solution for 18-9=3y equation: 



18-9=3y

We move all terms to the left:

18-9-(3y)=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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