I am confused about how to approach this problem: 

[![enter image description here](https://i.stack.imgur.com/PEQWX.png)](https://i.stack.imgur.com/PEQWX.png)

I looked at cheat sheets online and the closest I could find was this: But it is not quite what I'm looking for. 

[![enter image description here](https://i.stack.imgur.com/OYR5c.png)](https://i.stack.imgur.com/OYR5c.png)

A step by step guide would be helpful.