-7y-13+4y=77

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Solution for -7y-13+4y=77 equation: 



-7y-13+4y=77

We move all terms to the left:

-7y-13+4y-(77)=0

We add all the numbers together, and all the variables

-3y-90=0

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

-3y=90

y=90/-3

y=-30

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