12-8+y-3=21+4

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Solution for 12-8+y-3=21+4 equation: 



12-8+y-3=21+4

We move all terms to the left:

12-8+y-3-(21+4)=0

We add all the numbers together, and all the variables

y+12-8-3-25=0

We add all the numbers together, and all the variables

y-24=0

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

y=24

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