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Substitution

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Question 35

C=7a+2bC = 7a + 2bC=7a+2b

a=4a = 4a=4 b=−5b = -5b=−5

Work out the value of CCC.

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Substitution Questions

  1. GCSE
  2. /Maths
  3. /Substitution

108 exam-style questions on Edexcel GCSE Maths Substitution. Each one has a worked solution and a mark scheme showing where the marks go.

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