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4MA1/1FR Jan 2022, Question 7: Expand and Simplify

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 5 marks

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The question, in short

Simplify two algebraic expressions and solve a linear equation for r.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 2 marks

Simplify 3c + 5d − c + 2d by collecting like terms.

  1. 13c − c = 2c
  2. 25d + 2d = 7d
  3. 32c + 7d

Answer2c + 7d

Part (b) · 1 mark

Simplify the product 8e × 5f.

  1. 18 × 5 = 40
  2. 2e × f = ef
  3. 340ef

Answer40ef

Part (c) · 2 marks

Solve 5r − 3 = 8 to find the value of r.

  1. 15r − 3 = 8
  2. 25r = 8 + 3
  3. 35r = 11
  4. 4r = 11 ÷ 5
  5. 5r = 2.2

Answer2.2

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