4MA1/2FR Jun 2025, Question 19: Simultaneous Equations by Elimination
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2FR (Foundation) · Calculator · 3 marks
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The question, in short
Solve the pair of simultaneous equations 3x + 2y = 10 and 3x − 4y = 16, showing clear algebraic working.
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Solution · 3 marks
- 1Subtract: (3x + 2y) − (3x − 4y) = 10 − 16
- 26y = −6
- 3y = −1
- 43x + 2 × (−1) = 10
- 53x = 12
- 6x = 4
Answerx = 4, y = −1
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