7f-10=9f

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Solution for 7f-10=9f equation: 



7f-10=9f

We move all terms to the left:

7f-10-(9f)=0

We add all the numbers together, and all the variables

-2f-10=0

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

-2f=10

f=10/-2

f=-5

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