21=w/3+8

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Solution for 21=w/3+8 equation: 



21=w/3+8

We move all terms to the left:

21-(w/3+8)=0

We get rid of parentheses

-w/3-8+21=0

We multiply all the terms by the denominator


-w-8*3+21*3=0

We add all the numbers together, and all the variables

-1w+39=0

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

-w=-39

w=-39/-1

w=+39

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