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Solve 2-Step Equations




 


Videos and lessons to help High School students learn how to explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.


Suggested Learning Targets


  • Assuming an equation has a solution, construct a convincing argument that justifies each step in the solution process. Justifications may include the associative, commutative, and division properties, combining like terms, multiplication by 1, etc.

Common Core: HSA-REI.A.1

Related Topics:
Algebra Word Problems

Common Core (Algebra)

Common Core for Mathematics


Solving Two Step Equations: The Basics
This video explains how to solve basic two step equations.
Ex 1: Solving Two-Step Equations Using Integers
This video provides 4 examples of how to solve two step equations by adding, subtracting, multiplying and dividing integers.



Ex 2: Solving Two-Step Equations Using Integers
This video provides 2 more examples of how to solve two step equations by adding, subtracting, multiplying and dividing integers.
Solving Two Step Equations With Fractions
This video explains how to solve two step equation with fractions. In this video, the equations are solve by working with the fractions.


 
Solving Two Step Equations Involving Decimals.
This video provides examples of solving two step linear equations involving decimals.
Ex 2: Solving a Two Step Equation with Fractions - Not clearing the fractions
This video solves a two step equation with fractions by leaving the fractions in the equation and solving just like any other two step equation.


Ex 2: Solving a Two Step Equation with Fractions - Clearing the Fractions
This video solves a two step equation with fractions by clearing the fractions from the equation and then solving for x.
Ex 3: Solving a Two Step Equation with Fractions - Not Clearing the Fractions
This video solves a two step equation with fractions by leaving the fractions in the equation and solving just like any other two step equation.


 
Ex 3: Solving a Two Step Equation with Fractions - Clearing the Fractions
This video solves a two step equation with fractions by clearing the fractions from the equation and then solving for x.
Ex 4: Solving a Two Step Equation with Fractions - Not Clearing the Fractions
This video solves a two step equation with fractions by leaving the fractions in the equation and solving just like any other two step equation.


Ex 4: Solving a Two Step Equation with Fractions - Clearing the Fractions
This video solves a two step equation with fractions by clearing the fractions from the equation and then solving for x.
Ex 5: Solving a Two Step Equation with Fractions - Not Clearing the Fractions
This video solves a two step equation with fractions and a mixed number by leaving the fractions in the equation and solving just like any other two step equation.


 
Ex 5: Solving a Two Step Equation with Fractions - Clearing the Fractions
This video solves a two step equation with fractions and a mixed number by clearing the fractions from the equation and then solving for x.
Solving Two Step Equations: A Summary
This video explains how to solve two step equations.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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