JSCE Mathematics 2024 Objective — Question 23
Question 23 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2024 Objective paper, with the correct answer and a full explanation.
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Solve the equation 2x + 3y = 4 and 5x - 3y = -11 simultaneously and find the value of x - y.
- A. -3Correct
- B. 1
- C. 2
- D. 3
Explanation
Add the equations: 7x = -7, so x = -1. Then 2(-1) + 3y = 4 gives y = 2. x - y = -1 - 2 = -3.
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