AQA GCSE Mathematics · 8300
Specification A17 · Paper 1, Paper 2, Paper 3
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GCSE Mathematics · key term
A letter or symbol representing a value that is not yet known.
Used by AQA and Edexcel
Specification A17 · Paper 1, Paper 2, Paper 3
Specification A17 · Paper 1, Paper 2, Paper 3
A letter representing a value that is not yet known.
Revise: Linear EquationsIn a problem, define the unknown before writing the equation.
If the unknown is on both sides, first collect the unknown terms on one side; choosing the side that leaves a positive coefficient often makes the arithmetic easier.
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