GCSE Maths Algebra Mistakes
Algebra is one of the areas where small errors can change the whole answer. Careful layout and checking are essential.
Common Algebra Mistakes
- Changing signs incorrectly
- Expanding brackets incorrectly
- Collecting unlike terms
- Dividing only one side of an equation
- Losing minus signs in multi-step working
Exam tip: Keep equals signs lined up and change only one step at a time.
Common mistake: A common mistake is treating 3x + 2 as 5x. Numbers and algebra terms are not like terms.
Video explanation
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