-3f+7f=18

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Solution for -3f+7f=18 equation: 



-3f+7f=18

We move all terms to the left:

-3f+7f-(18)=0

We add all the numbers together, and all the variables

4f-18=0

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

4f=18

f=18/4

f=4+1/2

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