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WAEC Mathematics 2000 Question 38

Question 38

Linear and Simultaneous Equations

Find the value of x such that the expression 1/x + 4/(3x) − 5/(6x) + 1 equals zero

  1. A.1/6
  2. B.1/4
  3. C.−3/2
  4. D.−7/2
Show the answer and explanation

Answer: C (−3/2)

Explanation

Multiply by 6x: 6 + 8 − 5 + 6x = 0, so 6x = −9 and x = −3/2.