21=3/7*w

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Solution for 21=3/7*w equation: 



21=3/7w

We move all terms to the left:

21-(3/7w)=0



Domain of the equation: 7w)!=0

w!=0/1

w!=0

w∈R



We add all the numbers together, and all the variables

-(+3/7w)+21=0

We get rid of parentheses

-3/7w+21=0

We multiply all the terms by the denominator


21*7w-3=0

Wy multiply elements

147w-3=0

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

147w=3

w=3/147

w=1/49

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