-4y+8=21

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Solution for -4y+8=21 equation: 



-4y+8=21

We move all terms to the left:

-4y+8-(21)=0

We add all the numbers together, and all the variables

-4y-13=0

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

-4y=13

y=13/-4

y=-3+1/4

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