Substitution Method

What is Substitution Method?

A method of solving simultaneous equations in which one equation is rearranged to give one unknown explicitly in terms of the other, and that whole expression is then written in place of the unknown throughout the second equation. The result is a single equation in one unknown, and each solution of it generates its partner directly by returning to the rearranged equation, which is why the method never leaves ordered pairs unmatched.

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

Concepts related to Substitution Method

• reduced quadratic
• bracketed expression
• matched partner