Solve the equation: \(\frac{1}{5x} + \frac{1}{x}\)= 3
MATHEMATICS
WAEC 2017
Solve the equation: \(\frac{1}{5x} + \frac{1}{x}\)= 3
- A. \(\frac{1}{5}\)
- B. \(\frac{2}{5}\)
- C. \(\frac{3}{5}\)
- D. \(\frac{4}{5}\)
Correct Answer: B. \(\frac{2}{5}\)
Explanation
\(\frac{1}{5x} + \frac{1}{x}\)= 3
\(\frac{1 + 5}{5x}\) = 3
6 = 15x
x = \(\frac{6}{15}\)
= \(\frac{2}{5}\)
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