Practice working with simultaneous equations ahead of your National 5 Maths exam with this interactive maths quiz. Simultaneous equations can be solved algebraically by first eliminating one of the ...

Be careful to note what a GCSE question is asking. If it states ‘solve algebraically’ then you must do so. To find solutions from graphs, look for the point where the two graphs cross one another.

During lockdowns, I researched viral internet maths sensations. Several of them are what a teenager might recognise as simultaneous equations. In the emoji example above, smiley faces = 4 and blown ...