Problem:
Find all values of x which satisfy the following inequality:

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Visualization #1:
Using WLPlot:

1. At the main menu, use the arrow keys to move to the menu item Relation Plotter and press . If you have a mouse you can just click on the latter menu item.
2. At the prompt 0 =, enter x/(1+3*x) < y and y < 5-x
3. Press to get to the menu items at the bottom of the screen and use the arrow keys to move to Plot and press . If you have a mouse then just point to Plot on the bottom of the screen and click the mouse button.