WAEC Mathematics 2018 Objective — Question 9
Question 9 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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If y + 2x = 4 and y − 3x = −1, find the value of (x + y).
- A. 3Correct
- B. 2
- C. 1
- D. −1
Explanation
Subtracting the equations gives 5x=5, x=1, then y=2, so x+y=3.
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