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+39=0

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

-3y=-39

y=-39/-3

y=+13

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