When a somebody asks you to solve a problem and "show your work," how much detail should be shown?
For a simple example, if I were to solve $5x+7=17$, should I do: $$5x+7=17$$ $$5x+7-7=17-7$$ $$5x=10$$ $$\frac{5x}{5}=\frac{10}{5}$$ $$x=2$$ or $$5x+7=17$$ $$5x=10$$ $$x=2$$
In my math class, I have actually seen it both ways.