220=2(80-y)+4y

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Solution for 220=2(80-y)+4y equation: 



220=2(80-y)+4y

We move all terms to the left:

220-(2(80-y)+4y)=0

We add all the numbers together, and all the variables

-(2(-1y+80)+4y)+220=0



We calculate terms in parentheses: -(2(-1y+80)+4y), so:

2(-1y+80)+4y

We add all the numbers together, and all the variables

4y+2(-1y+80)

We multiply parentheses

4y-2y+160

We add all the numbers together, and all the variables

2y+160

Back to the equation:

-(2y+160)



We get rid of parentheses

-2y-160+220=0

We add all the numbers together, and all the variables

-2y+60=0

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

-2y=-60

y=-60/-2

y=+30

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