Answer:
12
Step-by-step explanation:
You do what's in parentheses first, but everything is in parentheses so it's pretty much ineffective. In PEMDAS, addition and subtraction are coupled so you do them left to right. 6-1 is 5 and 5+7 is 12.
If u are lost then go to police and ask for help
28 does this help .I got this answer by dividing 72 by 4 to get 28