7y+8=9y

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Solution for 7y+8=9y equation: 



7y+8=9y

We move all terms to the left:

7y+8-(9y)=0

We add all the numbers together, and all the variables

-2y+8=0

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

-2y=-8

y=-8/-2

y=+4

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