8y+1=9y-8

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Solution for 8y+1=9y-8 equation: 



8y+1=9y-8

We move all terms to the left:

8y+1-(9y-8)=0

We get rid of parentheses

8y-9y+8+1=0

We add all the numbers together, and all the variables

-1y+9=0

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

-y=-9

y=-9/-1

y=+9

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