5y-81=8y+42

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Solution for 5y-81=8y+42 equation: 



5y-81=8y+42

We move all terms to the left:

5y-81-(8y+42)=0

We get rid of parentheses

5y-8y-42-81=0

We add all the numbers together, and all the variables

-3y-123=0

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

-3y=123

y=123/-3

y=-41

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