WAEC Mathematics 2003 Question 12

Question 12

Linear and Simultaneous Equations

Find the value of x which satisfies the equation 5(x − 7) = 7 − 2x

  1. A.x = 2
  2. B.x = 4
  3. C.x = 6
  4. D.x = 14
Show the answer and explanation

Answer: C (x = 6)

Explanation

5x − 35 = 7 − 2x, so 7x = 42 and x = 6.