12=21y-1

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Solution for 12=21y-1 equation:



12=21y-1
We move all terms to the left:
12-(21y-1)=0
We get rid of parentheses
-21y+1+12=0
We add all the numbers together, and all the variables
-21y+13=0
We move all terms containing y to the left, all other terms to the right
-21y=-13
y=-13/-21
y=13/21

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