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O-LevelMathematicsAlgebra and graphs4024/11 · Oct/Nov 2021 · Q123 Marks

Solve the simultaneous equations. Show all your working. 2x - y = 12 7x+3y = 29

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2021). The mark or mark type is shown in brackets.

  1. 12 Correct method to eliminate one variable [M1]
  2. x = 5, y = -2 Both correct solutions nfww [A2] A1 for either x = 5 or y = -2 nfww or after A0, SC1 for a pair of values that satisfy either equation or correct values with no working

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About this question

Topic
Algebra and graphs, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, Oct/Nov 2021 Paper 1 Variant 1, question 12.

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