2=-2(9+y)+4y

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Solution for 2=-2(9+y)+4y equation: 



2=-2(9+y)+4y

We move all terms to the left:

2-(-2(9+y)+4y)=0

We add all the numbers together, and all the variables

-(-2(y+9)+4y)+2=0



We calculate terms in parentheses: -(-2(y+9)+4y), so:

-2(y+9)+4y

We add all the numbers together, and all the variables

4y-2(y+9)

We multiply parentheses

4y-2y-18

We add all the numbers together, and all the variables

2y-18

Back to the equation:

-(2y-18)



We get rid of parentheses

-2y+18+2=0

We add all the numbers together, and all the variables

-2y+20=0

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

-2y=-20

y=-20/-2

y=+10

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