12y+3=21

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Solution for 12y+3=21 equation: 



12y+3=21

We move all terms to the left:

12y+3-(21)=0

We add all the numbers together, and all the variables

12y-18=0

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

12y=18

y=18/12

y=1+1/2

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