-y-y+2-y-y=30

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Solution for -y-y+2-y-y=30 equation: 



-y-y+2-y-y=30

We move all terms to the left:

-y-y+2-y-y-(30)=0

We add all the numbers together, and all the variables

-4y-28=0

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

-4y=28

y=28/-4

y=-7

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