5y-9=-81-4y

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Solution for 5y-9=-81-4y equation: 



5y-9=-81-4y

We move all terms to the left:

5y-9-(-81-4y)=0

We add all the numbers together, and all the variables

5y-(-4y-81)-9=0

We get rid of parentheses

5y+4y+81-9=0

We add all the numbers together, and all the variables

9y+72=0

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

9y=-72

y=-72/9

y=-8

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