-y-y-7=4y-7

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Solution for -y-y-7=4y-7 equation: 



-y-y-7=4y-7

We move all terms to the left:

-y-y-7-(4y-7)=0

We add all the numbers together, and all the variables

-2y-(4y-7)-7=0

We get rid of parentheses

-2y-4y+7-7=0

We add all the numbers together, and all the variables

-6y=0

y=0/-6

y=0

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