3*y/4=-21

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Solution for 3*y/4=-21 equation: 



3y/4=-21

We move all terms to the left:

3y/4-(-21)=0

We add all the numbers together, and all the variables

3y/4+21=0

We multiply all the terms by the denominator


3y+21*4=0

We add all the numbers together, and all the variables

3y+84=0

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

3y=-84

y=-84/3

y=-28

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