5y-9=15y+31

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Solution for 5y-9=15y+31 equation: 



5y-9=15y+31

We move all terms to the left:

5y-9-(15y+31)=0

We get rid of parentheses

5y-15y-31-9=0

We add all the numbers together, and all the variables

-10y-40=0

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

-10y=40

y=40/-10

y=-4

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