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Editor’s collection of notes: Algebra One-Step Equations
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from Khan Academy: A one-step equation is an algebraic equation you can solve in only one step. Once you've solved it, you've found the value of the variable that makes the equation true.
To solve one-step equations, we do the inverse (opposite) of whatever operation is being performed on the variable, so we get the variable by itself. The inverse operations are:
The most important thing to remember is that whatever you do to one side of the equation, you have to do the same thing to the other side.
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