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Algebra · SS1–SS2

Linear & simultaneous equations

Solving equations with one unknown, and pairs of equations with two unknowns.

Before this
Expressions, formulae & change of subject
Leads to
Quadratics & their graphsInequalitiesCoordinate geometryMatrices & determinants

Learn

  1. 1Solving linear equationsAn equation is a balance: do the same to both sides until the letter is alone, and clear fractions by multiplying every term.Done15 min
  2. 2Simultaneous equationsTwo equations, two unknowns: what the answer means on a graph, and how elimination and substitution find it.Done15 min
  3. 3Turning words into equationsThe step most marks are lost on: choosing letters, translating each sentence into an equation, and answering the question that was actually asked.Done15 min

Practise

Answer linear & simultaneous equations questions one at a time. You'll know straight away whether you're right, with hints and the working step by step.

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Past questions (118)

From 1983–2025: 76 WAEC, 8 NECO, 34 JAMB. Theory questions first, then objective, newest first.

Theory (60)

Objective (58)