7-3y=84

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Solution for 7-3y=84 equation: 



7-3y=84

We move all terms to the left:

7-3y-(84)=0

We add all the numbers together, and all the variables

-3y-77=0

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

-3y=77

y=77/-3

y=-25+2/3

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