Interactive
PHET

Equality Explorer: Two Variables

For Students 6th - 12th Standards
Solving equations in two variables can't be that much harder than solving equations in one variable. Using a balance interactive, scholars solve equations in two variables. They apply inverse operations by adding -x, -y, or -1 as...
Lesson Plan
Curated OER

Linear Inequalities in Two Variables

For Teachers 9th - 12th Standards
Graph and solve linear equations in two variables. The class relates the concepts of linear equations to the real world.
Lesson Plan
EngageNY

Linear Systems in Three Variables

For Students 10th - 12th Standards
Put all that algebra learning to use! Using algebraic strategies, learners solve three-variable systems. They then use the three-variable systems to write a quadratic equation given three points on the parabola.
Lesson Plan
EngageNY

The Graph of a Linear Equation in Two Variables

For Teachers 8th Standards
Add more points on the graph ... and it still remains a line! The 13th installment in a series of 33 leads the class to the understanding that the graph of linear equation is a line. Pupils find several solutions to a two-variable linear...
Lesson Plan
Curated OER

Graphing and Interpreting Linear Equations in Two Variables

For Teachers 7th - 9th
Graph linear equations using a table of values. Learners solve equations in two variables using standard form of an equation. They identify the relationship between x and y values.
Lesson Plan
1
1
Illustrative Mathematics

The Intersection of Two Lines

For Teachers 7th - 9th Standards
Here is an introduction to solving simultaneous linear equations. Start by drawing a line through two points. Create a second line which goes through the intersecting point. Background knowledge of how to find the equation of a line and...
Lesson Plan
Curated OER

Two-Variable Linear Inequalities

For Teachers 9th - 11th
Here is an engaging lesson on solving equations with two variables. Have the class rewrite linear equations in the slope intercept form, y=mx + b. They graph the lines using the slope and y-intercepts.
Worksheet
Curated OER

Solving Two-Step Equations

For Students 8th - 10th
In this two-step equations activity, students solve two-step algebraic equations.  Equations contain one variable, multiplication and division steps. This one-page activity contains 15 problems.  Answers are provided.
Worksheet
Curated OER

Two-Step Equations with Decimals

For Students 8th - 9th
In this two-step equation worksheet, students use two-steps to solve for the unknown. Problems involving using addition, subtraction addition, and multiplication. This worksheet contains 18 problems and does contain an answer key.
Worksheet
Lorain County Community College

Solving Equations Using the Division Property

For Students 6th - 9th Standards
Go from easy to challenging with a learning exercise full of different problems designed for solving equations. Your mathematicians will be able to start small with one- and two-step equations and work their way up to multi-step...
Lesson Plan
Illustrative Mathematics

Two Lines

For Teachers 7th - 9th Standards
Here is a resource that helps your algebra learners understand the connection between the graph of two lines, the equations of lines, and the solutions and intersecting points of lines. It would make a great assessment question, but can...
Worksheet
Lorain County Community College

Solving Linear Equations in One Variable

For Students 7th - 10th Standards
Multiple-step problems don't have to equal tough problems. This learning exercise provides a list of steps needed to go through multi-step equations that include combining like terms and distributing. With ten problems total, your...
Lesson Plan
EngageNY

One-Step Equations—Multiplication and Division

For Teachers 6th Standards
Discover one more step to being able to solve any one-step equation. Scholars continue their work with one-step equations in the 28th installment of a 36-part module. Tape diagrams and algebraic processes introduce how to solve one-step...
Worksheet
Curated OER

Math Regents Exam: Solving for a Variable in Terms of Another Variable

For Students 9th - 12th
For this literal equations worksheet, students solve 7 equations for a specified variable.  Students solve two variable equations for one variable in terms of the other.
Lesson Plan
Curated OER

Graphing Linear Equations with Two Variables

For Teachers 9th - 11th
Can your class solve linear equations in two variables? They will be able to after they engage in this instructional activity. Individuals graph linear equations in two variables using slope and intercept and identifying the relationship...
Worksheet
Curated OER

Section 2.1 & 2.2 Solving Equations

For Students 7th - 10th
This two page worksheet contains 32 problems to solve. There are examples given for each set of problems. The first set is to work on adding or subtracting a term to get the variable by itself. The second set is about dividing both sides...
Lesson Plan
Curated OER

Solving Equations Using Two Operations

For Teachers 5th - 7th
Need more detail in showing your class how to solve two-step equations and proportions? This lesson plan outlines the steps young mathematicians need to solve simple equations and check their results. 
Lesson Plan
Mathematics Assessment Project

Solving Linear Equations in Two Variables

For Teachers 9th - 12th Standards
Solving problems about pen and paper with systems of equations ... or is it the other way around? In the lesson, learners first interpret expressions and use equations in two variables to solve problems about notebooks and pens. They...
Interactive
CK-12 Foundation

Two-Step Equations with Addition and Multiplication: T-Shirt Equation

For Students 7th - 10th Standards
Interactive bar models make solving equations fairly easy. Scholars use an interactive to adjust a bar model representing an equation. This model helps solve the equation.
Worksheet
Curated OER

Solving Two-Step Equations

For Students 7th - 9th
For this two-step equations worksheet, students simplify given equations. They solve for the unknown. This two-page worksheet contains 15 problems. Answers are provided on the last page.
PPT
Curated OER

One Step Equations: Add, Subtract, Multiply, Divide

For Teachers 7th - 9th
One step equations involving addition, subtraction, multiplication and subtraction.  Step by step methods of how to solve these equations and has practice problems for each operation.  Answers are provided.  As a...
Activity
1
1
Illustrative Mathematics

Kimi and Jordan

For Teachers 7th - 9th Standards
A single activity gets your math class to solve a word problem using two linear equations and two variables. They compare the summer earnings of Kimi and Jordan and then graph the solutions to determine who will save the most money in a...
Assessment
EngageNY

End-of-Module Assessment Task: Grade 7 Module 2

For Students 7th Standards
Learners demonstrate their ability to operate with rational numbers through a five-question assessment that includes questions ranging from simple operations with integers to solving two-step equations with rational coefficients.
Worksheet
Curated OER

Homework: Writing Two-Step Equations

For Students 7th - 9th
In this writing two-step equations instructional activity, students translate word sentences into algebraic problems. Afterward, they use algebra to solve two-step equations containing one variable. This one-page instructional activity...