Lessons

Determine the solution to a system of equations by testing pairs
In this lesson you will learn what it means for a pair of numbers to be a solution to a system of linear equations by systematically testing values.
Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions.
In this lesson you will learn what it means for a pair of numbers to be a solution to a system of linear equations by systematically testing values.