8=f/21

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Solution for 8=f/21 equation: 



8=f/21

We move all terms to the left:

8-(f/21)=0

We add all the numbers together, and all the variables

-(+f/21)+8=0

We get rid of parentheses

-f/21+8=0

We multiply all the terms by the denominator


-f+8*21=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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