7f-15=-1

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Solution for 7f-15=-1 equation:



7f-15=-1
We move all terms to the left:
7f-15-(-1)=0
We add all the numbers together, and all the variables
7f-14=0
We move all terms containing f to the left, all other terms to the right
7f=14
f=14/7
f=2

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