Answer:
5, -⅓
Step-by-step explanation:
x = 2:
4x + 3y = 23
3y = 23 - 4(2)
3y = 15
y = 5
x = 6:
3y = 23 - 4(6)
3y = -1
y = -⅓
D.
2 hours and 33 minutes have passes
a. (x = 1, y = -1, z = 1)