Solve for x

Don't be so negative about distributing the negative. Pupils solve an equation that requires using the distributive property. They must also combine like terms as part of the solution process.

Put your mathematicians to the test and see if they can solve this learning exercise full of multi-step equations with rational numbers. Add, subtract, multiply, and divide with fractions and decimals to solve for x. The top of the...

Lets keep the system working and show learners the three ways to solve linear systems of equations. Each method includes step-by-step instructions to work their way through the problem. The same problem is used for each method to show...

Sal demonstrates how to solve an equation. He begins by saying that the variable needs to be isolated. He shows how to move numbers on either side of the equal sign to isolate the variable. He also shows how to verify answers by plugging...

Given a linear equation in standard form, find the x-intercept and y-intercept. In this video, Sal shows how one can set x = 0 and solve the y-intercept, and how you can set y = 0 and find the x-intercepts.

The problem shown in this video starts with a linear equation in standard form with the task of finding the x and y intercepts. By setting x = 0, Sal shows how to find the y-intercept, and similarly, by setting y = 0 how to find the...

After defining intercept, Sal solves a simple equation to identify each intercept and then plots the line on a graph. This video would quite nicely complement an introductory lesson on graphing.

Sal offers an example showing how to manipulate numbers on either side of the equal sign to isolate the variable and solve the equation.

Here is an equation in which the first step is to use the distributive property to get rid of the parenthesis. Then it is solved for the variables. Since there are variables on both sides of the equation, it is important to verify the...

One of the many methods of solving quadratic equations is graphing. A video lesson first demonstrates graphing a quadratic function using an input-output table. After graphing the parabola, the instructor makes the connection between the...