3f+4=5f-8

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Solution for 3f+4=5f-8 equation: 



3f+4=5f-8

We move all terms to the left:

3f+4-(5f-8)=0

We get rid of parentheses

3f-5f+8+4=0

We add all the numbers together, and all the variables

-2f+12=0

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

-2f=-12

f=-12/-2

f=+6

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