AlgebraKey Facts

Method: Solving ax + b = c

Part of Linear EquationsGCSE Mathematics

This key facts covers Method: Solving ax + b = c within Linear Equations for GCSE Mathematics. Revise Linear Equations in Algebra for GCSE Mathematics with 16 exam-style questions and 12 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 4 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 2 of 4

Practice

16 questions

Recall

12 flashcards

Method: Solving ax + b = c

  1. Step 1: Deal with the + or - first (inverse operation)
  2. Step 2: Deal with the × or ÷ (inverse operation)
  3. Step 3: Check by substituting your answer back in

Inverse operations:

  • + and - are inverses
  • × and ÷ are inverses

Keep building this topic

Read this section alongside the surrounding pages in Linear Equations. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Linear Equations

What is the solution to 3x = 12?

  • A. x = 3
  • B. x = 4
  • C. x = 9
  • D. x = 36
1 markfoundation

Solve x + 7 = 15

1 markfoundation

Quick Recall Flashcards

What does 'solving an equation' mean?
Finding the value of the unknown (e.g. x) that makes the equation true. You isolate x by doing the same operation to both sides.
Golden Rule of solving equations
Whatever you do to one side, you MUST do to the other side to keep the equation balanced.

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