Learn how to solve simultaneous equations using substitution, algebraic and graphical methods with this BBC Bitesize Key Stage 3 Maths guide, then practise with examples and test questions.

You can use a SOLVE statement to solve the nonlinear equation system for some variables when the values of other variables are given. Consider the demand and supply model shown in the preceding ...

The Balance Model: Hindrance or Support for the Solving of Linear Equations with One Unknown, Educational Studies in Mathematics, Vol. 49, No. 3 (2002), pp. 341-359 ...