Solve the system of equations using substitution, elimination by addition, or augmented

Question

matrix methods (your choice). Show work.
3𝑥 − 2𝑦 = 5
5𝑥 + 3𝑦 = 21

Answer 1

Multiply Eq1 by 3 and Eq2 by 2:
9x - 6y = 15.
10x + 6y = 42.
Solve by addition.