//5. Use substitution to solve the system of equations
3x - y = 4
2x - 3y = 9
Solution: (
)

Answer: (3,5)
Step-by-step explanation:
y=3x-4
2x-3y=-9
2x-3(3x-4)=-9
2x-9x+12=-9
7x=21
x=3
y=3(3)-4
y=5