21=50-7(-5-4w)

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Solution for 21=50-7(-5-4w) equation: 



21=50-7(-5-4w)

We move all terms to the left:

21-(50-7(-5-4w))=0

We add all the numbers together, and all the variables

-(50-7(-4w-5))+21=0



We calculate terms in parentheses: -(50-7(-4w-5)), so:

50-7(-4w-5)

determiningTheFunctionDomain
-7(-4w-5)+50

We multiply parentheses

28w+35+50

We add all the numbers together, and all the variables

28w+85

Back to the equation:

-(28w+85)



We get rid of parentheses

-28w-85+21=0

We add all the numbers together, and all the variables

-28w-64=0

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

-28w=64

w=64/-28

w=-2+2/7

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