20=8(w-2)-4w

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Solution for 20=8(w-2)-4w equation: 



20=8(w-2)-4w

We move all terms to the left:

20-(8(w-2)-4w)=0



We calculate terms in parentheses: -(8(w-2)-4w), so:

8(w-2)-4w

We add all the numbers together, and all the variables

-4w+8(w-2)

We multiply parentheses

-4w+8w-16

We add all the numbers together, and all the variables

4w-16

Back to the equation:

-(4w-16)



We get rid of parentheses

-4w+16+20=0

We add all the numbers together, and all the variables

-4w+36=0

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

-4w=-36

w=-36/-4

w=+9

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