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Substitution

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Question 79

D=x+ytD = x + ytD=x+yt

x=40x = 40x=40 y=15y = 15y=15 t=3t = 3t=3

Work out the value of DDD.

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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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