Isolating the Variable


Ninth graders investigate how to solve equations with the variable present on both sides. They practice isolating the variable and combining like terms before solving the equation for the variable.

Resource Details

1 hr

Solving One Step Equation

Young scholars solve one step equations. In this algebra lesson, students solve linear equations using division, multiplication, subtraction and addition. They investigate the correct way to keep an equation balanced.

Solving Multi-Step Equations: Applications

In this solving multi-step equations applications learning exercise, students solve 10 short answer problem. Students write and solve equations given a word problem. Students solve each equation by combining like terms and isolating the variable.

Solving One Step Equations Using Algebra Tiles

Students solve linear equations. In this algebra lesson plan, students solve equations using addition, subtraction, division and multiplication. They evaluate and simplify functions.

Solving Systems of Equations by Graphing

In this systems of equations worksheet, students solve systems of equations by graphing.  They identify the intercept of two lines.  This two-page worksheet contains 12 multi-step problems.  Explanations and examples are provided.

Simplifying and Solving One Step Equations

Students solve one step linear equations. In this algebra lesson, students use addition, subtraction, division and multiplication to solve linear equations. They practice solving two step equations as well.

Solving Systems of Equations by Elimination

Elimination is another way to solve systems of equations besides graphing and substitution. Sal's lecture is clear and easy to understand even for struggling learners. By having a variety of options when faced with linear equations, one can truly dissect a problem and use the method that is most beneficial for him.

Solving for a Variable 2

The instructor uses the formula for temperature to show how the variables can be moved around to solve a problem.

How Do You Solve an Identity Equation?

When you are working through a problem trying to find the value of the variable and you find that both sides of the equation are exactly the same, you have an identity equation. This means that for any value of the variable, both sides will be equal.

Topic 4: Solving Systems of Linear Equations

Linear equations, coordinate planes, and systems of equations are covered in this extremely well-organized instructional activity. Composed of a series of mini-lessons, the instruction aims at explaining a different facet of solving systems of linear equations. Each mini-instructional activity inlcudes a printable document, procedure, and objective.

Solving Systems of Equations Algebraically

Students solve systems of equations algebraically. In this algebra lesson plan, students solve systems using substitution and elimination. They solve linear and quadratic systems.

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