21=7(w-6)+2w

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Solution for 21=7(w-6)+2w equation: 



21=7(w-6)+2w

We move all terms to the left:

21-(7(w-6)+2w)=0



We calculate terms in parentheses: -(7(w-6)+2w), so:

7(w-6)+2w

We add all the numbers together, and all the variables

2w+7(w-6)

We multiply parentheses

2w+7w-42

We add all the numbers together, and all the variables

9w-42

Back to the equation:

-(9w-42)



We get rid of parentheses

-9w+42+21=0

We add all the numbers together, and all the variables

-9w+63=0

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

-9w=-63

w=-63/-9

w=+7

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