Real math help.
How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
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Word problems are a great way to see math in action! In this tutorial, you'll see how to write a system of linear equations from the information given in a word problem. Then, you'll see how to solve this system using the elimination method. See this entire process by watching this tutorial!
Background Tutorials
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apply mathematics to problems arising in everyday life, society, and the workplace
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How Do You Solve a System of Equations Using the Elimination by Subtraction Method?
There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve such a system by combining the equations together in a way so that one of the variables is eliminated. Then, see how find the value of that variable and use it to find the value of the other variable. Take a look!
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communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate
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What's a System of Linear Equations?
A system of equations is a set of equations with the same variables. If the equations are all linear, then you have a system of linear equations! To solve a system of equations, you need to figure out the variable values that solve all the equations involved. This tutorial will introduce you to these systems.
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Write systems of two linear equations given a table of values, a graph, and a verbal description
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How Do You Solve a System of Equations Using the Elimination by Addition Method?
There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve a system of linear equations by combining the equations together to eliminate one of the variables. Then, see how find the value of that variable and use it to find the value of the other variable. Take a look!
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Further Exploration
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Graph systems of two linear equations in two variables on the coordinate plane and determine the solutions if they exist
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How Do You Solve a System of Equations by Graphing?
There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve a system of linear equations by graphing both lines and finding their intersection. Take a look!
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