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Edexcel IGCSE Math A Foundation 2.3 F Changing the Subject of a Formula Questions

Practise reversing operations so a variable appearing once becomes the subject of a linear or fractional formula.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Foundation

Exam points

  • undo addition or subtraction before reversing multiplication or division
  • clear a fraction first when the required subject appears in its numerator
  • present the named variable alone on one side and check by substituting values

Edexcel IGCSE Math A Foundation 2.3 F Changing the Subject of a Formula Questions question 1

[Maximum number: 2]

Make t the subject of m=t+45m=\frac{t+4}{5}

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