[SeaHawkFan]

When you have a bunch of operations of the same rank, you just operate from left to right. Not true. In fact, the problem is 48 divided by 2x12 = 2. If it was 48 divided 2 x (9+3), 288 would be correct; butthat is not the problem. IOW, the problem is 48 over 2x(9+3) = 2.

[RBranha]

PurpleMath says:
“When you have a bunch of operations of the same rank, you just operate from left to right.”

And SeaHawkFan says:
“Not true.”

If you claim PurpleMath is incorrect, you’ll have to cite your source. However, you should be aware that Excel, Google, C#, JavaScript, my RPN HP50g, PHP, and bc all say that the answer is 288.