3y=7y-80

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Solution for 3y=7y-80 equation: 



3y=7y-80

We move all terms to the left:

3y-(7y-80)=0

We get rid of parentheses

3y-7y+80=0

We add all the numbers together, and all the variables

-4y+80=0

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

-4y=-80

y=-80/-4

y=+20

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