Looks like you completely ignored post #3 which gives a hint, also gave some info on how you can edit your post to make that ge look like ≥.
Back where I come from all any one ever needs is the answer. We train to back engineer the method (explanation) from the answer. Why? Because we almost always have the answer but never the method, never the purpose. We find the completed product just lying there buried under tons of rock and sand, maybe buried there for thousands of millennia. It is valuable to be able to fill in the blanks when the answer is handed to you.
What were your thoughts on these problems? Please try to solve this now yourself. If you still can not after that I will show what I did.