7y-15=4y+9

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Solution for 7y-15=4y+9 equation: 



7y-15=4y+9

We move all terms to the left:

7y-15-(4y+9)=0

We get rid of parentheses

7y-4y-9-15=0

We add all the numbers together, and all the variables

3y-24=0

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

3y=24

y=24/3

y=8

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