2f-7=9

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Solution for 2f-7=9 equation: 



2f-7=9

We move all terms to the left:

2f-7-(9)=0

We add all the numbers together, and all the variables

2f-16=0

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

2f=16

f=16/2

f=8

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