2f+3.5=12.9

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Solution for 2f+3.5=12.9 equation: 



2f+3.5=12.9

We move all terms to the left:

2f+3.5-(12.9)=0

We add all the numbers together, and all the variables

2f-9.4=0

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

2f=9.4

f=9.4/2

f=4+1/1.4285714285714

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