70=2(20+w)

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Solution for 70=2(20+w) equation: 



70=2(20+w)

We move all terms to the left:

70-(2(20+w))=0

We add all the numbers together, and all the variables

-(2(w+20))+70=0



We calculate terms in parentheses: -(2(w+20)), so:

2(w+20)

We multiply parentheses

2w+40

Back to the equation:

-(2w+40)



We get rid of parentheses

-2w-40+70=0

We add all the numbers together, and all the variables

-2w+30=0

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

-2w=-30

w=-30/-2

w=+15

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