18f+18=15f

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Solution for 18f+18=15f equation: 



18f+18=15f

We move all terms to the left:

18f+18-(15f)=0

We add all the numbers together, and all the variables

3f+18=0

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

3f=-18

f=-18/3

f=-6

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