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3 years ago

9

How do you decide whether substitution is the best method to solve a system in three variables?

1 answer:

Ivan3 years ago

3 0

<span>Select one equation and solve it for one of its variables.
In the other equation, substitute for the variable just solved.
Solve the new equation.
<span>Substitute the value found into any equation involving both variables and solve for the other variable. </span></span>

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