-2(-x-1)-(x+9)
= -2x + 2 - x - 9
Rearrange
= -2x - x + 2 - 9
= -3x - 7
Answer: The change in temperature each hour was 6 degrees celsius.
Step-by-step explanation: 48 divided by 8 = 6
Answer:
3x-4y-9
Step-by-step explanation:
Combine like terms