21y-6=84

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Solution for 21y-6=84 equation: 



21y-6=84

We move all terms to the left:

21y-6-(84)=0

We add all the numbers together, and all the variables

21y-90=0

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

21y=90

y=90/21

y=4+2/7

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