How to Solve Two Simultaneous Equations
I will use the whiteboard in order to explain the answer to my question. The format will follow:Understanding what it means to 'solve' one equationUnderstanding what it means to 'solve' two equationsVariables and coefficientsEliminating one variableSolving for the first variableSubstituting in to find the second variableChecking using the second equation
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All answers ▸Nadia has £5 to buy pencils and rulers. Prices: Pencils - 8p each Rulers - 30p each She says, "I will buy 15 pencils Then I will buy as many rulers as possible With my change I will buy more pencils." How many pencils and how many rulers does she
How do you factorise a quadratic equation?
Work out 2^3 + 4^2
Solve the simultaneous equations: y = 4x^2 - 9x - 1 and y = 5 - 4x