3y+7=9y-13

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Solution for 3y+7=9y-13 equation: 



3y+7=9y-13

We move all terms to the left:

3y+7-(9y-13)=0

We get rid of parentheses

3y-9y+13+7=0

We add all the numbers together, and all the variables

-6y+20=0

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

-6y=-20

y=-20/-6

y=3+1/3

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