Answer:20.5
Step-by-step explanation: hard to explain without paper
Answer:
y=x
Step-by-step explanation:
y=12
Try to subtitute y with 3x - 7
15x - 5y = 14
15x - 5(3x - 7) = 14
15x - 15x + 35 = 14
35 ≠ 14
The equation system doesn't have any solution
Answer:
6
Step-by-step explanation: