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JSCE Mathematics 2022 Objective — Question 23

Question 23 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

Solve the simultaneous equation: 5x - 2y = 14 and 2x + 2y = 14

A. x = 4, y = -3
B. x = -4, y = 3
C. x = -4, y = -3
D. x = 4, y = 3Correct

Explanation

Add the equations: 7x = 28, x = 4. Then 8 + 2y = 14, y = 3.

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