SOLUTION: 3 over x plus 1 minus 4 over x

Question 571548: 3 over x plus 1 minus 4 over x
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
3 over x plus 1 minus 4 over x
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3/(x+1) - (4/x)
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lcd: x(x+1)
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Rewrite each fraction with the lcd as its denominator:
[3x/lcd] - 4(x+1)/lcd
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Combine the numerators over the lcd:
= [3x-4x-4]/lcd
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= -[x+4]/[x(x+1)]
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Cheers,
Stan H.
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