System of Equations with Many Solutions

System of Equations with Many Solutions
Introduction

A system of equations is a set of equations that uses the same variables. Solving a system means finding values that make all the equations true at the same time....

John is buying some notebooks and a pack of markers from a shop. Another customer, Alex, buys 2 more notebooks than John and does not buy markers.

Each notebook costs $2, and the pack of markers costs $4.

John wondered how many notebooks he could buy so that their total costs would be the same.

Let x represent the number of no...