GCSE MATHS REVISION
NOTES
Foundation & higher | exam focused
What You Need to Know
Solving equations means finding the value of the letter that makes the equation true.
Key Rules
Rule 1: Keep the equation balanced
Rule 2: Do the same to both sides
Rule 3: Simplify before solving
Worked Example
A simple worked example illustrating the key concepts.
Question: x + 5 = 12
Solution: The opposite of add 5 is subtract 5, so 12 - 5 = 7 x = 7
© Bright Sparks Tutoring – GCSE Maths Revision Notes – Personal Use Only
Step-by-Step Method
1. Step 1: Remove brackets (if any)
2. Step 2: Collect like terms
3. Step 3: Isolate the letter
4. Step 4: Check your answer
Common Mistakes:
NOTES
Foundation & higher | exam focused
What You Need to Know
Solving equations means finding the value of the letter that makes the equation true.
Key Rules
Rule 1: Keep the equation balanced
Rule 2: Do the same to both sides
Rule 3: Simplify before solving
Worked Example
A simple worked example illustrating the key concepts.
Question: x + 5 = 12
Solution: The opposite of add 5 is subtract 5, so 12 - 5 = 7 x = 7
© Bright Sparks Tutoring – GCSE Maths Revision Notes – Personal Use Only
Step-by-Step Method
1. Step 1: Remove brackets (if any)
2. Step 2: Collect like terms
3. Step 3: Isolate the letter
4. Step 4: Check your answer
Common Mistakes:
