Question

How do you solve a system of linear equations using substitution? How do you verify your answer?

Accepted Answer

Solve the first equation for variable *x*.   
Substitute the expression for variable *x* in the second equation to solve for variable *y*.     
Plug variable *y* back into the first equation.    
Verify answer by substituting both variables into both equations and confirming equivalence.

Flashcard 10 - Math Flashcard Set for the PERT

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