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SAGeneral MathematicsQuick questions
Topic 1: Modelling with Linear Relationships
Quick questions on Simultaneous equations and break-even (SACE Stage 2 General Mathematics)
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 substitution?Show answer
Rearrange one equation for a variable and substitute into the other.
What is elimination?Show answer
Add or subtract multiples of the equations to cancel one variable.
What is graphical?Show answer
Plot both lines; the intersection is the solution.
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