-y+7=y-9

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



-y+7=y-9

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1y-(y-9)+7=0

We get rid of parentheses

-1y-y+9+7=0

We add all the numbers together, and all the variables

-2y+16=0

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

-2y=-16

y=-16/-2

y=+8

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