21=p/7

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Solution for 21=p/7 equation: 



21=p/7

We move all terms to the left:

21-(p/7)=0

We add all the numbers together, and all the variables

-(+p/7)+21=0

We get rid of parentheses

-p/7+21=0

We multiply all the terms by the denominator


-p+21*7=0

We add all the numbers together, and all the variables

-1p+147=0

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

-p=-147

p=-147/-1

p=+147

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