-21=7/4w

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Solution for -21=7/4w equation: 



-21=7/4w

We move all terms to the left:

-21-(7/4w)=0



Domain of the equation: 4w)!=0

w!=0/1

w!=0

w∈R



We add all the numbers together, and all the variables

-(+7/4w)-21=0

We get rid of parentheses

-7/4w-21=0

We multiply all the terms by the denominator


-21*4w-7=0

Wy multiply elements

-84w-7=0

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

-84w=7

w=7/-84

w=-1/12

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