Solving Linear Equations (Junior Cert Mathematics): Flashcards
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Practise the cards
13 cards from this deck
Highest power of variable in linear equation
Highest power of variable in linear equation
Why called 'linear' equation?
Why called 'linear' equation?
Creates a straight line on a graph
To undo addition
To undo addition
Subtract
To undo subtraction
To undo subtraction
Add
To undo multiplication
To undo multiplication
Divide
To undo division
To undo division
Multiply
Rule for rearranging equations
Rule for rearranging equations
Letters to left, numbers to right
How to check solution is correct
How to check solution is correct
Substitute value back into original equation
Unknowns on both sides: which to eliminate first?
Unknowns on both sides: which to eliminate first?
The smaller variable
First step with brackets
First step with brackets
Expand the brackets
First step with fractions
First step with fractions
Multiply by denominators to eliminate fractions
Key rule when rearranging
Key rule when rearranging
Same operation on both sides
Variables in linear equations are not...
Variables in linear equations are not...
Squared or cubed