80+9y=7y

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Solution for 80+9y=7y equation: 



80+9y=7y

We move all terms to the left:

80+9y-(7y)=0

We add all the numbers together, and all the variables

2y+80=0

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

2y=-80

y=-80/2

y=-40

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