Question 83041
Let r and s be x and y (they represent the same idea)

If you want to solve by using addition, then...


*[invoke solving_linear_system_by_elimination 3, 5, 3, 1, 2, 13]



If you want to solve by using substitution, then...

*[invoke solving_linear_system_by_substitution 3, 5, 3, 1, 2, 13]