GRADE 7 · MATHEMATICS · TOPIC 5

Linear Equations

Use inverse operations to isolate the variable.

CONCEPT EXPLAINED

Understand the concept

Use inverse operations to isolate the variable.

SOLVED EXAMPLE

3x + 5 = 20

  1. Step 1: Subtract 5
  2. Step 2: divide by 3.

Final answer: x = 5

PRACTISE YOURSELF

4x − 3 = 17

Show the answer

x = 5

Try another similar question and explain each step aloud. Refer to your school syllabus for topic level and notation.