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O-LevelAdditional MathematicsSimultaneous equations4037/12 · May/June 2012 · Q45 Marks

Solve the simultaneous equations 5x + 3y = 2 and 2/x - 3/y = 1 .

Mark scheme

Marking points from the official mark scheme (May/June 2012). The mark or mark type is shown in brackets.

  1. [M1] M1 for substitution to get an equation of one variable
  2. [M1] M1 for attempt to form a 3 term quadratic equation = 0
  3. [DM1] DM1 for solution of quadratic equation
  4. [A1, A1] Al for each 'pair'

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About this question

Topic
Simultaneous equations, O-Level Additional Mathematics (syllabus 4037). Structured question, 5 marks.
Source
O-Level Additional Mathematics, May/June 2012 Paper 1 Variant 2, question 4.

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