20=7(w+8)-3w

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Solution for 20=7(w+8)-3w equation: 



20=7(w+8)-3w

We move all terms to the left:

20-(7(w+8)-3w)=0



We calculate terms in parentheses: -(7(w+8)-3w), so:

7(w+8)-3w

We add all the numbers together, and all the variables

-3w+7(w+8)

We multiply parentheses

-3w+7w+56

We add all the numbers together, and all the variables

4w+56

Back to the equation:

-(4w+56)



We get rid of parentheses

-4w-56+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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