9f-15=4f

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Solution for 9f-15=4f equation:



9f-15=4f
We move all terms to the left:
9f-15-(4f)=0
We add all the numbers together, and all the variables
5f-15=0
We move all terms containing f to the left, all other terms to the right
5f=15
f=15/5
f=3

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