Lumos Video Store
This page provides a list of educational videos related to Expressions and Equations. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Expressions and Equations.
Solve equations with one rational expression (advanced)
By Khan Academy
Sal solves the following equation by first simplifying the rational expression: x^2-(x^2-4)/(x-2)=4.
Solve equations with two rational expressions
By Khan Academy
Sal solves the following equation and eliminates the resulting extraneous solution: (x^2)/(x+2)=4/(x+2).
Solve equations with two rational expressions
By Khan Academy
Sal solves the equation 5/(2x)-4/(3x)=7/18 by first finding the LCM (least common multiple) of 2x and 3x.
Solve equations with two rational expressions
By Khan Academy
Sal solves the equation 4/(p-1)=5/(p+3).
Solving a more complicated equation | Linear equations | Algebra I
By Khan Academy
This example demonstrates how we solve an equation expressed such: ax + b = c. It's a little more complicated than previous examples, but you can do it!
Expressions and Equations - Grade 6 Math Educational Video (6.EE.7)
By Lumos Learning
Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.
PARENTS please visit LumosTestPrep.com to learn more.
EDUCATORS please visit LumosLearning.com to learn more
Expressions and Equations - Grade 7 Math Educational Video (7.EE.2)
By Lumos Learning
Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.
PARENTS please visit LumosTestPrep.com to learn more.
EDUCATORS please visit LumosLearning.com to learn more
Solve equations with one rational expression (advanced)
By Khan Academy
Sal solves the equation (14x+4)/(-3x-2)=8.
Solving radical equations 1 | Exponent expressions and equations | Algebra I | Khan Academy
By Khan Academy
This Khan Academy video offers more information on solving radical equations and contains a few sample problems with a step-by-step walkthrough on solving these equations.
Fractional exponent expressions 3 | Exponent expressions and equations | Algebra I | Khan Academy
By Khan Academy
Fractional Exponent Expressions 3. All Khan Academy content is available for free at www.khanacademy.org
Fractional exponent expressions 1 | Exponent expressions and equations | Algebra I | Khan Academy
By Khan Academy
This Khan Academy video offers more information on rational exponents and contains a few samples with a step-by-step walkthrough on these new concepts.
The Khan Academy - Simultaneous Linear Equations
By Khan Academy
This video lecture series on Algebra from Khan Academy includes Linear Equations, Solving Inequalities, Slope and Y-intercept, Equation of a Line, Averages, Integer sums, Taking Percentages, Systems of Equations, Ratios, Multiplying Expressions, Solving a quadratic by factoring, Imaginary Numbers, Complex Numbers, Quadratic Equations, Quadratic Inequalities, Functions, Conic sections, Circles, Ellipses, Hyperbolas......
Solve equations with one rational expression (basic)
By Khan Academy
Sal solves the equation (14x+4)/(-3x-2)=8.
Testing solutions of equations using substitution
By Khan Academy
Learn what variables, expressions, and equations really are.
Writing one-step equations word problems
By Khan Academy
Using information from the Super Yoga word problem, explore all the possible combinations and create equations which express the possibilities. Let's figure out which plan is best!
Expressions and Equations- Grade 8 Math Educational Video (8.EE.7a)
By Lumos Learning
Using the Lumos Study Programs, parents and educators can reinforce the classroom learning experience for children and help them succeed at school and on the standardized tests. Lumos books, dvd, eLearning and tutoring are used by leading schools, libraries and thousands of parents to supplement classroom learning and improve student achievement in the standardized tests.
PARENTS please visit LumosTestPrep.com to learn more.
EDUCATORS please visit LumosLearning.com to learn more
Percent word problems
By Khan Academy
In this example, you working with us to find the number that is expressed as a given percentage.We'll create a simple algebraic equation to solve!
Markup and commission word problems
By Khan Academy
In this example, you working with us to find the number that is expressed as a given percentage.We'll create a simple algebraic equation to solve!
Understanding inverse trig functions
By Khan Academy
Sal finds the expressions that together represent all possible solutions to the equation sin(x)=1/3.