There are three ways to solve a system of equations with 3 variables. One is substitution, which is solving one of the equations for a variable, and then plugging that into

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Key Concepts A solution set is an ordered triple { (x,y,z)} that represents the intersection of three planes in space. See Example . A system of three equations in three

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math is the study of numbers, shapes, and patterns. It is used in everyday life, from counting to measuring to more complex calculations.

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