In this unit, we learn how to write systems of equations, solve those systems, and interpret what those solutions mean in a real-world context. Unit guides are here!

How can you use clues from two algebraic expressions to figure out the value of a variable? In this unit, you'll learn how to solve a system of equations or inequalities in two variables by …

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a …

There are lots of strategies we can use to solve equations. Let's explore some different ways to solve equations and inequalities. We'll also see what it takes for an equation to have no …

Solve systems of equations where one of the equations is solved for one of the variables.

If one line is useful, let's see what we can do with two lines. In this unit, we learn how to write systems of equations, solve those systems, and interpret what those solutions mean in a real …

Solve systems of equation with one-step elimination (e.g., x-values or y-values cancel each other out).

Solve systems of equation with multi-step elimination (e.g., a manipulation is needed in order for x-values or y-values to cancel each other out).

Practice Up next for you: Solutions of systems of equations Get 3 of 4 questions to level up!

Solving linear systems graphically Learn Systems of equations with graphing: y=7/5x-5 & y=3/5x-1 Systems of equations with graphing: exact & approximate solutions