Khan Academy
Khan Academy: Solve Systems of Linear Equations With Elimination (Basic)
In this exercise, students practice solving systems of linear equations with elimination. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Number of Solutions to Equations Challenge
Given a linear equation with missing values, determine appropriate values in order to have one, zero, or infinite solutions. For example, complete the equation -11x + 4 = __x + __ so that it has no solutions. Students receive immediate...
Cuemath
Cuemath: Linear Equations in Two Variables
A comprehensive guide for learning all about linear equations in two variables with definitions, how to solve them, solved examples, and practice questions.
Khan Academy
Khan Academy: Systems of Equations With Elimination
Solve systems of equation with one-step elimination (e.g., x-values or y-values cancel each other out). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy
Khan Academy: Systems of Equations With Elimination Challenge
Solve systems of equations with multi-step elimination (e.g., a manipulation is needed in order for x-values and y-values to cancel each other out). Students receive immediate feedback and have the opportunity to try questions...
Other
Nearpod: Pairs of Linear Equations
In this instructional activity, 8th graders will learn how to solve systems of equations by graphing, substitution, and elimination.
Khan Academy
Khan Academy: Systems of Equations With Substitution
Solve systems of equations where one of the equations is solved for one of the variables. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Solutions of Systems of Equations
Verify whether a given pair of values is a solution to a system of equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
CK-12 Foundation
Ck 12: Algebra: Linear Systems With Addition or Subtraction
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system by adding the two equations together to eliminate a variable.
Khan Academy
Khan Academy: Represent Linear Systems With Matrices
Determine the matrix that represents a given system of linear equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
CK-12 Foundation
Ck 12: Algebra: Comparing Methods for Solving Linear Systems
[Free Registration/Login may be required to access all resource tools.] Decide which method is the best one to use to solve a system of linear equations.
Analyze Math
Analyze Math: Cramer?s Rule to Solve Systems of Equations
Learners are introduced to the Algebra II topic of solving systems of linear equations. The tutorial proves Cramer?s rule of solving 2 by 2 systems of equations. The activity includes a defintion and an example with a detailed solution.
Free Math Help
Free Math Help: Systems of Linear Equations
The Algebra II session explores systems of linear equations. Students learn how to solve the problems algebraically and graphically.
University of St. Andrews (UK)
University of St. Andrews: Gabriel Cramer
Information about the life of Gabriel Cramer (1704-1752 CE), 18th century mathematician credited with "Cramer's Rule," though "Cramer was certainly not the first to give this rule."
Other
Algebra.com: Linear Equation and System Solvers: Solve Linear Systems
This interactive linear system solver allows you to enter two linear equations in general form and then plot the lines and find the answer using either substitution or elimination. The answer is presented with both methods accompanied by...
Texas Instruments
Texas Instruments: Solve Linear Systems by Graphing, Substitution, Elimination
Students will solve systems of linear equations by a variety of methods: graphing, substitution, and elimination. The questions are multiple-choice and fill-in-the-blank.
CK-12 Foundation
Ck 12: Algebra: Solving Linear Systems Using Matrices and Technology
[Free Registration/Login may be required to access all resource tools.] This lesson covers using a graphing calculator and matrices to solve a system of equations.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Problem Solving Using Linear Systems
Ten problems present practice using problem-solving with linear systems in real-world situations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
Texas A&M University
Wtamu Virtual Math Lab: Solving Systems of Linear Equations in Three Variables
This tutorial will show you how to solve a system of linear equations in three variables by using the elimination method. Complete with definitions, example problems with step-by-step solutions, and practice exercises for you to complete...
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Systems of Nonlinear Equations
Learn how to solve a system of nonlinear equations using the substitution and the elimination methods. This tutorial offers definitions, problems and step-by-step solutions, and practice exercises for you to complete and check.
Other
Morgan State: Linear Algebraic Equations and Matrices
This site gives information on linear equations and matrices. Among the topics discussed are the substitution method, Gauss-Jordan Elimination Method, matrix operations, matrix multiplication, and inverse matrices.
Government of Alberta
Learn Alberta: Linear Systems Graph
Learn Alberta helps students visually explore various solutions of systems of two linear equations by allowing students to manipulate lines and view their numeric and graphic solution(s) or absence. The applet identifies the solutions as...
Oswego City School District
Regents Exam Prep Center: Solving Systems Using Addition or Subtraction
Three examples are used to demonstrate solving a system of linear equations algebraically using addition and subtraction. The examples cover different situations that occur with the coefficients of the variable terms. Includes several...
Texas Instruments
Texas Instruments: Simultaneous Equation Solver App
Students use this App to calculate solutions (a unique solution, no solution, or an infinite number of solutions.unique) for linear systems. They can work with systems that contain both numeric and symbolic coefficients and have up to 30...