What the even **** kinda drugs do you people take? It specifies under the sum to use the result of 360/4 under the application of x.
To get 45 what you did was use an algebra calculator instead of your brain.
Why the hell would you divide 90 by 2? There's nothing there to suggest you should do that... Other than some stupid method learnt in a school by a teacher who only knows Mathematics method from the 1850's.
Well that's what BS this all is Dustin, you hit the nail on the head. Numbers don't change and they shouldn't but the way some people get taught is to effectively make up variables in an equation that don't even exist on the paper they are reading from.
The problem is that you always need rules to solve problems to ensure consistency. Especially considering Math is so closely tied to Science, ensuring that the scientific method stays intact and results are consistent and repeatable is a key to all of our understandings of everything.
Just because 2+3*5 and 3*5+2 look different, doesn't mean that the result should be different. Additionally, these rules (brackets specifically) allow different results to be nested within a formula, while acknowledging that those results must be solved before the rest of the formula to maintain accuracy and correctness.