Elimination Method

What is Elimination Method?

A method of solving simultaneous equations in which the two equations are scaled so that one term appears identically in both, and are then added or subtracted so that the term cancels, leaving a single equation in one unknown. It applies to nonlinear systems as readily as to linear ones whenever the equations share a term such as x squared, y squared or xy, but because it does not automatically pair each root with its partner, the pairing must be established separately by returning to one of the original equations.

This definition is part of the Simultaneous Equations chapter in Cambridge O Level Additional Mathematics.

Concepts related to Elimination Method

• shared term
• scaling an equation
• sign branches