If \(\dfrac1{x}+\dfrac13+\dfrac14=1,\) then \(x =\)
A. \(2\)
B. \(\dfrac{24}{11}\)
C. \(\dfrac{12}5\)
D. \(5\)
E. \(6\)
Answer: C
Source: Magoosh
If \(\dfrac1{x}+\dfrac13+\dfrac14=1,\) then \(x =\)
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Solution:
Multiplying the equation by 12x, we have:
12 + 4x + 3x = 12x
12 = 5x
12/5 = x
Answer: C
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