[aruanan]

The operation in the parentheses first. Then the operation between the outcome of the parenthetical operation and its factor, the 2, yielding 24, then the operation between the 24 and the 48, yielding 2. Look at it this way:

48__=
2(9+3)

48__=
2(12)

48__=
24

2

[MortMan]

Why did you perform the operation between the 2 and the parenthesis before the division? They have the same mathematical precedence, and left-to-right processing says divide first.

In this case, the correct answer is 288.