7y+3=3y-5=9y+7

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Solution for 7y+3=3y-5=9y+7 equation: 



7y+3=3y-5=9y+7

We move all terms to the left:

7y+3-(3y-5)=0

We get rid of parentheses

7y-3y+5+3=0

We add all the numbers together, and all the variables

4y+8=0

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

4y=-8

y=-8/4

y=-2

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