This is a free preview. For full access
Expressions & Equations: Solutions of Linear Equations
Systems of Equations with Elimination II
Description
Systems of Equations with Elimination II
Introduction
Systems of equations help us solve real-life problems with two unknowns, like comparing phone plans, ticket prices, or snack combos. Elimination is useful when adding or subtracting equations can make o...
Show More
Transcript
Nova buys two notebooks and one pencil for five dollars from a store, and her friend Liam buys three notebooks and two pencils for eight dollars. Nova wonders, what is the cost of one pencil?
Let x represent the cost of a notebook, and y represent the cost of a pencil. She writes the equations: 2x + y = 5 and 3x + 2y = 8.
Show More