4(9-w)-20=20-2w

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Solution for 4(9-w)-20=20-2w equation: 



4(9-w)-20=20-2w

We move all terms to the left:

4(9-w)-20-(20-2w)=0

We add all the numbers together, and all the variables

4(-1w+9)-(-2w+20)-20=0

We multiply parentheses

-4w-(-2w+20)+36-20=0

We get rid of parentheses

-4w+2w-20+36-20=0

We add all the numbers together, and all the variables

-2w-4=0

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

-2w=4

w=4/-2

w=-2

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