Question

//5. Use substitution to solve the system of equations

3x - y = 4
2x - 3y = 9
Solution: (
)

Answer 1

Answer: (3,5)

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