-21=f/8

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Solution for -21=f/8 equation: 



-21=f/8

We move all terms to the left:

-21-(f/8)=0

We add all the numbers together, and all the variables

-(+f/8)-21=0

We get rid of parentheses

-f/8-21=0

We multiply all the terms by the denominator


-f-21*8=0

We add all the numbers together, and all the variables

-1f-168=0

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

-f=168

f=168/-1

f=-168

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