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f/42-1/7=1/7
We move all terms to the left:
f/42-1/7-(1/7)=0
We add all the numbers together, and all the variables
f/42-1/7-(+1/7)=0
We get rid of parentheses
f/42-1/7-1/7=0
We calculate fractions
There is no solution for this equation
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