PRC-2 · Chapter 1 · Question 25 of 45
Find the values of x and y in the following simultaneous linear equations: 3x - 2y = 8 and x + y = 6.
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: B) x = 4, y = 2
Explanation
Multiply the second equation by 2 to get 2x + 2y = 12. Add this to the first equation (3x - 2y = 8) to eliminate y. This yields 5x = 20, so x = 4. Substituting x = 4 into x + y = 6 gives y = 2.
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