Quick questions on Simultaneous equations: elimination, substitution and graphs - SQA National 5 Maths

4short 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 not defining the variables in a worded question?

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State what each letter stands for before writing the equations.

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

2x + 3y = 12

and

x = 3

. [2 marks]

What is q3?

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Solve

y = x + 2

and

2x + y = 8

. [3 marks]

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