3f-12f=7

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Solution for 3f-12f=7 equation: 



3f-12f=7

We move all terms to the left:

3f-12f-(7)=0

We add all the numbers together, and all the variables

-9f-7=0

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

-9f=7

f=7/-9

f=-7/9

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