-7y+3y=20

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Solution for -7y+3y=20 equation: 



-7y+3y=20

We move all terms to the left:

-7y+3y-(20)=0

We add all the numbers together, and all the variables

-4y-20=0

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

-4y=20

y=20/-4

y=-5

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