7y-8=9y-18

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Solution for 7y-8=9y-18 equation: 



7y-8=9y-18

We move all terms to the left:

7y-8-(9y-18)=0

We get rid of parentheses

7y-9y+18-8=0

We add all the numbers together, and all the variables

-2y+10=0

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

-2y=-10

y=-10/-2

y=+5

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