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O-LevelMathematicsAlgebra and graphs4024/12 · May/June 2021 · Q114 Marks

Solve the simultaneous equations. Show your working. 5x+2y = 7 2x-3y = 18

Mark scheme

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

  1. [M1] Correctly equating one set of coefficients or correct rearrangement of one equation
  2. [M1] Correct method to eliminate one variable
  3. [A2] x = 3
  4. [A2] y = -4 nfww
  5. [A2] A1 for x = 3 or y = − 4 nfww
  6. [A2] or after A0, SC1 for a pair of values that satisfy either equation or for correct answers with no working

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About this question

Topic
Algebra and graphs, O-Level Mathematics (syllabus 4024). Structured question, 4 marks.
Source
O-Level Mathematics, May/June 2021 Paper 1 Variant 2, question 11.

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