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Intro to Systems of Equations

Systems of Equations deals with more than one equation. At first, you will usually be seeing two equations. If you are asked to solve the system, you are being asked to find the point(s) of intersection between the two graphs.

For example, let’s look at two lines:

Equation 1: Equation 2:

Recall the . . . → Read More: Intro to Systems of Equations

Solving Systems of Equations with the Elimination Method (Addition)

Systems of Equations, where you have more than one equation and are trying to find the intersection between them, can be solved in a number of ways. Here we will look at the Elimination Method, also known as the Addition/Subtraction method.

Let’s look at a simple system of equations:

Equation 1: 3x+7y=11 Equation 2: . . . → Read More: Solving Systems of Equations with the Elimination Method (Addition)

Solving Systems of Equations with the Elimination Method (Subtraction)

Systems of Equations, where you have more than one equation and are trying to find the intersection between them, can be solved in a number of ways. Here we will look at the Elimination Method, also known as the Addition/Subtraction method.

Let’s look at a simple system of equations:

Equation 1: 3x+5y=12 Equation 2: . . . → Read More: Solving Systems of Equations with the Elimination Method (Subtraction)

Solving Systems of Equations by Substitution

Hopefully you have already learned how to solve systems of equations by graphing. If not, view our guide here.

Now we’re going to learn how to solve them by using algebra and a method called substitution.

Again, let’s look at the same two equations:

Equation 1: Equation 2:

Notice that both of the . . . → Read More: Solving Systems of Equations by Substitution