20+9w=4*(15-w)

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Solution for 20+9w=4*(15-w) equation: 



20+9w=4(15-w)

We move all terms to the left:

20+9w-(4(15-w))=0

We add all the numbers together, and all the variables

9w-(4(-1w+15))+20=0



We calculate terms in parentheses: -(4(-1w+15)), so:

4(-1w+15)

We multiply parentheses

-4w+60

Back to the equation:

-(-4w+60)



We get rid of parentheses

9w+4w-60+20=0

We add all the numbers together, and all the variables

13w-40=0

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

13w=40

w=40/13

w=3+1/13

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