SOLUTION: 25-3/7f=19+4/7f

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Question 168810: 25-3/7f=19+4/7f
Answer by checkley77(12844) About Me  (Show Source):
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25-3/7f=19+4/7f
-3f/7-4f/7=19-25
-7f/7=-6
-f=-6
f=6 ans.
25-3/7*6=19+4/7*6
25-18/7=19+24/7
25-19=24/7+18/7
6=42/7
6=6