21/w=7

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Solution for 21/w=7 equation: 



21/w=7

We move all terms to the left:

21/w-(7)=0



Domain of the equation: w!=0

w∈R



We multiply all the terms by the denominator


-7*w+21=0

We add all the numbers together, and all the variables

-7w+21=0

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

-7w=-21

w=-21/-7

w=+3

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