GCSE · Simultaneous equations

Simultaneous equations by eliminationExam-style questions

Why two unknowns need two equations, why adding or subtracting whole equations is legal, and the sign rule that decides which of the two kills a variable.

18 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 1Level 2Level 3Level 4Level 5
  1. 1
    55 pens and 22 rulers cost £3.403.40.

    33 pens and 44 rulers cost £4.004.00.

    Work out the cost of one pen and the cost of one ruler.
    Level 5 · 4 marksTry it