-y/3=7

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Solution for -y/3=7 equation: 



-y/3=7

We move all terms to the left:

-y/3-(7)=0

We multiply all the terms by the denominator


-y-7*3=0

We add all the numbers together, and all the variables

-1y-21=0

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

-y=21

y=21/-1

y=-21

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