-w/7=3

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Solution for -w/7=3 equation: 



-w/7=3

We move all terms to the left:

-w/7-(3)=0

We multiply all the terms by the denominator


-w-3*7=0

We add all the numbers together, and all the variables

-1w-21=0

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

-w=21

w=21/-1

w=-21

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