Solve the simultaneous equations and .

Answer and explanation

Correct answer: A. ,

  1. Step 1: Add the equations: , so . Step 2. Then , so . **Answer: , . Why not the others:** , and , satisfy only the first equation, and , satisfies only the second.

Practise more Equations and Inequalities.

Free questions with an explanation for every one, and full timed Junior Cycle (Ireland) mock tests.