Question 86643
Order of Operation:
The answer is different because of the order in which it is solved.  Using the Order of Operation (PEMDAS):
.
120+10(9)/9
120+(90)/9
120+(10)
130
.
As compared to:
[120+10(9)]/9 
[120+ (90)]/9 
[210]/9
210/9
23.33