Help chaps im having a bad time with this.(adsbygoogle = window.adsbygoogle || []).push({});

I can appreciate this is basic, however i can not get my head around it.

Im scrubbing up on my maths as i was thinking of doing a HND in Engineering. I am working my way through K.A. Stroud's Engineering Mathematics and simply cant get to grips with this.

the exercise question is:-

2a - 5b + c = 1

a + c = 2

b - 3c = -3

solve the equations for a,b and c.

Im just not sure on the golden rules? do i use substitution or elimination? If someone can guide me through this it would be of HUGE appreciation.

Great site by the way:)

Nick

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# Homework Help: Simultaneous equations with 3 Unknowns

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