Linear equations 1 (Edexcel GCSE Maths): Flashcards
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12 cards from this deck
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Practise the cards
12 cards from this deck
Analogy for an equation
Analogy for an equation
Balanced scales
What equals sign shows
What equals sign shows
Both sides have the same value
Definition of variable
Definition of variable
A letter representing an unknown number
Main goal when solving linear equations
Main goal when solving linear equations
Get the variable on its own on one side
Key principle for keeping equations balanced
Key principle for keeping equations balanced
Do the same thing to both sides
Inverse operation of addition
Inverse operation of addition
Subtraction
Inverse operation of subtraction
Inverse operation of subtraction
Addition
Inverse operation of multiplication
Inverse operation of multiplication
Division
Inverse operation of division
Inverse operation of division
Multiplication
Operations per step when solving
Operations per step when solving
One operation at a time
Reason to show every step in exams
Reason to show every step in exams
Can get marks for method even if answer is wrong
How to check equation answer
How to check equation answer
Substitute it back into the original equation