GCSE Maths Linear Equations: lesson and practice questions

By the end of this chapter you will be able to

• Explain what an equation is and use the balance idea: do the same to both sides
• Solve one-step and two-step equations, including negative and fractional solutions
• Solve equations with the unknown on both sides and equations with brackets
• Solve equations that contain fractions (Higher: including algebraic fractions)
• Form an equation from words, perimeters, angles, ages and costs, solve it and interpret the answer
• Check a solution by substitution, and find approximate solutions using a graph

You should already know

• Negative numbers and the four operations (Chapter 1)
• Collecting like terms and expanding brackets (Chapter 7)
• Fractions and common denominators (Chapter 3)

Where this leads

• Rearranging formulae (Chapter 8)
• Inequalities (Chapter 10)
• Straight-line graphs (Chapter 12)
• Simultaneous equations (Chapter 14)