Question 864876: x - 7/x + 6 > 0
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! (x - 7)/(x + 6) > 0
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Draw a number line.
Plot x = 7 and x = -6
Those are values x cannot take.
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Test a value in each of the three intervals formed on the # line.
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(x-7)/(x+6) > 0
Test x = -10 to get -/- > 0 ; that is true
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Test x = 0 to get +/- > 0 ; that is false
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Test x = 10 to get +/+ > 0 ; that is true
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Ans: (-oo,-6)U(7,+oo)
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Cheers,
Stan H.
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