Why do you have to waste paper for it, its easy.
1. 360/4 = 90
2. It says to solve for x, but we have gotten so far that we know that 2x=90
3. To know what x is, we need to divide it by 2.
4. 2x=90 x=? 90/2=45
5. Conclusion, x is 45
Actually, the way people get taught is that you don't make up your own rules in math. You are wrong. So, so wrong. Almost unbelievably wrong.
It's called balancing the equation. The variable is the thing you are solving for. That equals sign means that everything that comes before it is equal to what comes after it. 290 does not equal 360/4. It just doesn't. Therefore, you must divide the product of 360/4 by 2 to get the answer for the variable.
For the record, math doesn't change. It doesn't matter if you learned it in 1850 or in 2013; math is simply relationships between variables. Always has been, always will be. You saying it's wrong is like saying that a triangle actually has 5 sides, not 3 sides, because having 3 sides now makes it a turtleneck. From 1850.
A 2 beside a variable means that variable is multiplied by the 2. In the same way that a question mark at the end of a sentence means that the sentence is a question. Or do you not believe in questions, either? Maybe to you a question mark means Spatula.
Well I've read the equation as it's written not how some method dictates it should be solved.
So you be the judge of who is wrong.
Fact of the matter is, someone taught you something and told you and you took is as gospel, not my fault if people are blind to thinking outside of their tiny minds.
There's probably 90% of the people who commented couldn't even work out the equation on their own anyway, but they chime in here trying to look smart. At the end of the day, algebra is retarded, if you're retarded enough to need to substitute numbers for alternate symbols because you can't hold anything in your brain for more than 3seconds then you probably need some retarded method.
I am being the judge of who is wrong. And you, sir, are wrong.
And no, you did not "solve" the equation based on how it was written. You incorrectly guessed what it meant. Math is not some faith-based witchcraft that you either believe in or don't, it's not something that you can 'take as gospel,' it's a very distinct pattern of relationships. That's it. There is no grey area for interpretation, it is what it is.