# Solving Linear Equations

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These free videos, study guides and online tools can help you graph, solve, and apply linear equations. Find a resource today to learn more about slope-intercept and point-slope forms of a line, graphing a linear equation, and more.
 In this video, Salman Khan of Khan Academy explains linear equations. Khan Academy In this video, Salman Khan of Khan Academy shows you how to graph a line. Khan Academy In this video, Salman Khan of Khan Academy explains linear equations. Part 4 of 4. Khan Academy In this video, Salman Khan of Khan Academy explains linear equations. Part 3 of 4. Khan Academy In this video, Salman Khan of Khan Academy explains linear equations. Part 2 of 4. Khan Academy Gives students a detailed explanation of slope and working with slope-intercept form. Then allows students to practice their knowledge of slope with an interactive graph. Math Warehouse Algebra Terms StudyStack This interactive online tool enables students to simultaneously visualize and manipulate three linked representations of a distance-rate-time problem. The side-by-side tool format features two airplanes (each flying at a constant speed) on merging jet routes, the corresponding distance-vs.-time graphs, and the corresponding linear equations. NASA Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra. Paul's Online Math Notes Need help solving systems of linear equations? In this video, a Tutor.com algebra tutor uses the substitution method to solve a system of linear equations, and shows you how to use graphing to make sure you don’t get tricked by systems of parallel lines that have no solution. You’ll graph the linear equations, find their point of intersection, solve them using substitution, and check your work to make sure it all makes sense. Tutor.com
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