This is a beginner lesson for pre-algebra or 7th grade math - one-step equations that are solved by multiplying or dividing.
First, I explain how we simplify expressions such as 5x/5 (the fives cancel out). Then I show how to solve simple equations by either dividing or multiplying both sides by the same number, in order to isolate x (leave x alone on one side of the equation).
Learn more pre-algebra with Math Mammoth Grade 7 Curriculum at http://www.mathmammoth.com/complete/grade_7.php
Tagged under: Multiplication,Equation,Division,Algebra (Field Of Study),pre-algebra,7th grade,-step equation,multiplication equation,division equation,isolate
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