20=10(7+w)

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Solution for 20=10(7+w) equation: 



20=10(7+w)

We move all terms to the left:

20-(10(7+w))=0

We add all the numbers together, and all the variables

-(10(w+7))+20=0



We calculate terms in parentheses: -(10(w+7)), so:

10(w+7)

We multiply parentheses

10w+70

Back to the equation:

-(10w+70)



We get rid of parentheses

-10w-70+20=0

We add all the numbers together, and all the variables

-10w-50=0

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

-10w=50

w=50/-10

w=-5

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