2(y-9)=-20

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Solution for 2(y-9)=-20 equation: 



2(y-9)=-20

We move all terms to the left:

2(y-9)-(-20)=0

We add all the numbers together, and all the variables

2(y-9)+20=0

We multiply parentheses

2y-18+20=0

We add all the numbers together, and all the variables

2y+2=0

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

2y=-2

y=-2/2

y=-1

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