-13y-15=20-18y

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Solution for -13y-15=20-18y equation: 



-13y-15=20-18y

We move all terms to the left:

-13y-15-(20-18y)=0

We add all the numbers together, and all the variables

-13y-(-18y+20)-15=0

We get rid of parentheses

-13y+18y-20-15=0

We add all the numbers together, and all the variables

5y-35=0

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

5y=35

y=35/5

y=7

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