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 Amsco Integrated Algebra I: Solving for a Variable in Terms of Another Variable
This is a free lesson from our course in Amsco's Integrated Algebra
This lesson explains how to solve equations if it contains more than one variable. Such equation can be solved by expressing one variable in terms of another one. E.g. the equation ax + b = 3b contains the variables a, b, and x. Given to solve this equation for x means, express x in terms of the other variables using the following operations/procedure:
Step 1. Write the equation ax +b= 3b
Step 2. Subtract b from each side ax+b-b=3b-b, it gives ax=2b
Step 3. Divide both sides by a, it yields ax/a=2b/a
Step 4. Simplify each side, you get the answer x=2b/a.
The video below will explain in detail with the help of several examples.
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