2y+18=21

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Solution for 2y+18=21 equation: 



2y+18=21

We move all terms to the left:

2y+18-(21)=0

We add all the numbers together, and all the variables

2y-3=0

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

2y=3

y=3/2

y=1+1/2

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