3y+9+7y+2=91

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Solution for 3y+9+7y+2=91 equation: 



3y+9+7y+2=91

We move all terms to the left:

3y+9+7y+2-(91)=0

We add all the numbers together, and all the variables

10y-80=0

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

10y=80

y=80/10

y=8

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