20=2(y+6)-4y

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Solution for 20=2(y+6)-4y equation: 



20=2(y+6)-4y

We move all terms to the left:

20-(2(y+6)-4y)=0



We calculate terms in parentheses: -(2(y+6)-4y), so:

2(y+6)-4y

We add all the numbers together, and all the variables

-4y+2(y+6)

We multiply parentheses

-4y+2y+12

We add all the numbers together, and all the variables

-2y+12

Back to the equation:

-(-2y+12)



We get rid of parentheses

2y-12+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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