5y-9=8y+9

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Solution for 5y-9=8y+9 equation: 



5y-9=8y+9

We move all terms to the left:

5y-9-(8y+9)=0

We get rid of parentheses

5y-8y-9-9=0

We add all the numbers together, and all the variables

-3y-18=0

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

-3y=18

y=18/-3

y=-6

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