7=f/21

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Solution for 7=f/21 equation: 



7=f/21

We move all terms to the left:

7-(f/21)=0

We add all the numbers together, and all the variables

-(+f/21)+7=0

We get rid of parentheses

-f/21+7=0

We multiply all the terms by the denominator


-f+7*21=0

We add all the numbers together, and all the variables

-1f+147=0

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

-f=-147

f=-147/-1

f=+147

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