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IceJOKER [234]
3 years ago
9

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

Mathematics
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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