WAEC SSCE - General Mathematics - 2011…

Question 1 Report

Solve the equation; 3x - 2y = 7, x + 2y = -3

x = 1, y = -2 Correct answer

x = 1, y = 3

x = -2, y = -1

x = 4, y = -3

Answer Details

To solve this system of equations, we can use the method of elimination. We will add the two equations together, which will eliminate the y variable: (3x - 2y) + (x + 2y) = 7 + (-3) Simplifying, we get: 4x = 4 Dividing both sides by 4, we get: x = 1 Substituting x = 1 into one of the equations, we get: 1 + 2y = -3 Solving for y, we get: y = -2 Therefore, the solution to the system of equations is x = 1, y = -2. So, the correct option is (a) x = 1, y = -2.






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WAEC SSCE - General Mathematics - 2011 (Objective)