knowing how to swim has a much more positive effect on my daily life than knowing basic algebra...
You will have difficultly valuing income real estate in CA then, which requires use of algebraic simultaneous equations, because as the purchase price goes up, so does the 1% property tax, thereby reducing the net income, thereby reducing its value. In other words, there are two linked moving targets, so you need to use one of those equations that has x's and y's in it. See, sometimes this esoterica is useful in real life, outside nerdville. Who knew?