Answer:
454
Step-by-step explanation:

this is the answer, its pretty simple. I'm not sure the mathematical procedures but if you plug in 7 you get 49. Then all you got to do is subtract by 7, because the question states the number is the same. So basically,
Answer:
9x + x
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
Absolute value means take what is inside and make it positive
|5| - |-4|
5 - 4
1
Answer:
10*(9-5)
Step-by-step explanation: