5f+2f=9

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Solution for 5f+2f=9 equation: 



5f+2f=9

We move all terms to the left:

5f+2f-(9)=0

We add all the numbers together, and all the variables

7f-9=0

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

7f=9

f=9/7

f=1+2/7

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