3y/8=21

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Solution for 3y/8=21 equation: 



3y/8=21

We move all terms to the left:

3y/8-(21)=0

We multiply all the terms by the denominator


3y-21*8=0

We add all the numbers together, and all the variables

3y-168=0

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

3y=168

y=168/3

y=56

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