Math Student Help

Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/multiplicationequations.php Students learn to solve one-step multiplication equations. For example, to solve 7x = 28, divide both sides of the equation by 7, to get x = 4. Next, check the solution by substituting a 4 back into the original equation, to get 7(4) = 28, which is a true statement, so the solution checks.

Duration : 0:1:25

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Access full lesson containing this video at: http://www.yourteacher.com/prealgebra/subtractionequations.php Students learn to solve one-step subtraction equations. For example, to solve z - 3 = 16, add 3 to both sides of the equation, to get z = 19. Next, check the solution by substituting a 19 back into the original equation, to get (19) — 3 = 16, which is a true statement, so the solution checks.

Duration : 0:1:29

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