-20=-2y+4(y-7)

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Solution for -20=-2y+4(y-7) equation: 



-20=-2y+4(y-7)

We move all terms to the left:

-20-(-2y+4(y-7))=0



We calculate terms in parentheses: -(-2y+4(y-7)), so:

-2y+4(y-7)

We multiply parentheses

-2y+4y-28

We add all the numbers together, and all the variables

2y-28

Back to the equation:

-(2y-28)



We get rid of parentheses

-2y+28-20=0

We add all the numbers together, and all the variables

-2y+8=0

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

-2y=-8

y=-8/-2

y=+4

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