In this section you will begin to appreciate that simultaneous equations have not just appeared as an exercise for the examination papers. They are very important, for instance, to the work of a chemical engineer.

What does a Chemical Engineer do ?
Video extract of Chemical Engineering work done at Esso
Optimising Production of Products from Crude Oil.
Questions for Pupils.
Answers to "Questions for Pupils".
Extension Questions for Pupils.
Answers to Extension Questions.

This section is an "extract from Maths@Work Teacher's Pack (Pub: 2000), by Kind Permission of Harrison Smith Associates Ltd, London (www.mathsatwork.com) following an initiative by
the Institute of Maths and its Applications. (www.ima.org.uk) .