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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