Systems of Equations with Elimination I

Systems of Equations with Elimination I

Introduction

A system of equations is a set of two equations with the same variables. Solving it means finding the values that make both equations true. You might see systems when comparing phone plans, buying ticke...

Sofia studies a problem: solve the system of equations x + 3y = -2 and x - 3y = 16, and wonders how to begin.

Her teacher suggests using the elimination method, which adds or subtracts equations to remove one variable when like terms have the same or opposite coefficients.

Sofia notices that the y terms have opposite coef...