Quick questions on Simultaneous equations: elimination, substitution and linear-quadratic - Edexcel GCSE Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?

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Solve

x + y = 10

and

x - y = 4

. [3 marks]

What is q2?

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Solve

y = x + 2

and

y = x^2

. [3 marks]

What is only scaling one equation?

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To match coefficients you may need to multiply both equations, not just one.

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