08 Feb '19 21:53>
The post that was quoted here has been removed
...arriving at the correct answer would be enough to show that I understood how to solve the problem.
That's what I thought too, but even the work I did show usually wasn't good enough.
In the example I gave (2x + 5 = 11) I might write:
2x = 6
x = 3
But this wasn't good enough, the teachers wanted to see more. Which is ridiculous because all one needs to do is to subtract 5 from both sides of the equation, and then divide both sides by two.