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.

Solving simultaneous equations by elimination The most common method for solving simultaneous equations is the elimination method which means one of the unknowns will be removed from each equation.

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 ...