3f-13=f

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Solution for 3f-13=f equation: 



3f-13=f

We move all terms to the left:

3f-13-(f)=0

We add all the numbers together, and all the variables

2f-13=0

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

2f=13

f=13/2

f=6+1/2

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