In this lesson, you'll learn how to find an endpoint when you already have a midpoint. It is 9 of 11 in the series titled "Finding an Endpoint."

Demonstrated in this lesson is that a variable, like a number, has inverses; and what to do with those variables when they have coefficients. It is 10 of 14 in the series titled "Moving the Variable."

Demonstrated in this lesson is that a variable, like a number, has inverses; and what to do with those variables when they have coefficients. It is 3 of 14 in the series titled "Moving the Variable."

Demonstrated in this lesson is that a variable, like a number, has inverses; and what to do with those variables when they have coefficients. It is 4 of 14 in the series titled "Moving the Variable."

Demonstrated in this lesson is that a variable, like a number, has inverses; and what to do with those variables when they have coefficients. It is 5 of 14 in the series titled "Moving the Variable."

Demonstrated in this lesson is that a variable, like a number, has inverses; and what to do with those variables when they have coefficients. It is 9 of 14 in the series titled "Moving the Variable."

Demonstrated in this lesson is that a variable, like a number, has inverses; and what to do with those variables when they have coefficients. It is 1 of 14 in the series titled "Moving the Variable."

In this lesson, the concept covered is that of solving for one or more than one variable in an equation. It is 4 of 9 in the series titled "Multiple Variable Equations."

In this lesson, the concept covered is that of solving for one or more than one variable in an equation. It is 5 of 9 in the series titled "Multiple Variable Equations."

In this lesson, the concept covered is that of solving for one or more than one variable in an equation. It is 6 of 9 in the series titled "Multiple Variable Equations."

In this lesson, the concept covered is that of solving for one or more than one variable in an equation. It is 7 of 9 in the series titled "Multiple Variable Equations."

In this lesson, the concept covered is that of solving for one or more than one variable in an equation. It is 8 of 9 in the series titled "Multiple Variable Equations."

In this lesson, the concept covered is that of solving for one or more than one variable in an equation. It is 1 of 9 in the series titled "Multiple Variable Equations."

This lesson demonstrates how to use the correct format to find the value of a variable in an addition problem. It is 12 of 17 in the series titled "Solving Addition Equations."

This lesson demonstrates how to use the correct format to find the value of a variable in an addition problem. It is 3 of 17 in the series titled "Solving Addition Equations."

This lesson demonstrates how to use the correct format to find the value of a variable in an addition problem. It is 7 of 17 in the series titled "Solving Addition Equations."

This lesson demonstrates how to solve a proportion when a variable is present. It is 11 of 13 in the series titled "Solving a Proportion with an Unknown."

This lesson demonstrates how to solve a proportion when a variable is present. It is 13 of 13 in the series titled "Solving a Proportion with an Unknown."

This lesson demonstrates how to solve a proportion when a variable is present. It is 2 of 13 in the series titled "Solving a Proportion with an Unknown."

This lesson demonstrates how to solve a proportion when a variable is present. It is 4 of 13 in the series titled "Solving a Proportion with an Unknown."

This lesson demonstrates how to solve a proportion when a variable is present. It is 5 of 13 in the series titled "Solving a Proportion with an Unknown."

This lesson demonstrates how to solve a proportion when a variable is present. It is 7 of 13 in the series titled "Solving a Proportion with an Unknown."

This lesson demonstrates how to solve a proportion when a variable is present. It is 9 of 13 in the series titled "Solving a Proportion with an Unknown."

This lesson demonstrates how to solve a proportion when a variable is present. It is 1 of 13 in the series titled "Solving a Proportion with an Unknown."