Simultaneous equations (OCR GCSE Maths): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
How many equations and unknowns do simultaneous equations involve?
How many equations and unknowns do simultaneous equations involve?
Two equations, two unknowns
What must the solution values do?
What must the solution values do?
Make both equations balance
When should you SUBTRACT the equations?
When should you SUBTRACT the equations?
When key letters have same sign
When should you ADD the equations?
When should you ADD the equations?
When key letters have opposite signs
What is the purpose of choosing a 'Key Letter'?
What is the purpose of choosing a 'Key Letter'?
To eliminate it from equations
What must you do with the coefficients of the Key Letter?
What must you do with the coefficients of the Key Letter?
Make them the same in both equations
What is the standard format for arranging simultaneous equations?
What is the standard format for arranging simultaneous equations?
How should you write the equations in Step 2?
How should you write the equations in Step 2?
One under the other, aligned
After finding one variable, what is Step 6?
After finding one variable, what is Step 6?
Substitute back to find the other
How do you check your answer in Step 7?
How do you check your answer in Step 7?
Substitute into both equations
With quadratic simultaneous equations, how many solution pairs can you get?
With quadratic simultaneous equations, how many solution pairs can you get?
Two solution pairs
First step for quadratic simultaneous equations?
First step for quadratic simultaneous equations?
Rearrange linear equation