Fact is pretty much every specific topic you learn in school is useless in real life.

American history...
The correct form for throwing a javelin...
How to titrate a solution of Aspirin...

Another fact is every single one of those things WILL be useful AT SOME POINT. Being able to re-arrange equations has proven useful to me a lot of times in the past.

Chucking the javelin helped me when I wanted to murder the post man.
American history helped me when I watched Malcolm X
Titrating the solution of aspirin...ermmm, oh no, sorry, that one was a bit useless.

Knowledge is power and algebra isn't that difficult and damn useful. Learn dat shit.