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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-2(-1y+7)+4)-4=0



We calculate terms in parentheses: -(-2(-1y+7)+4), so:

-2(-1y+7)+4

We multiply parentheses

2y-14+4

We add all the numbers together, and all the variables

2y-10

Back to the equation:

-(2y-10)



We get rid of parentheses

-2y+10-4=0

We add all the numbers together, and all the variables

-2y+6=0

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

-2y=-6

y=-6/-2

y=+3

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