-7f-3-6f=21

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Solution for -7f-3-6f=21 equation: 



-7f-3-6f=21

We move all terms to the left:

-7f-3-6f-(21)=0

We add all the numbers together, and all the variables

-13f-24=0

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

-13f=24

f=24/-13

f=-1+11/13

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