How is algebra applied to other subjects?

Answer 1

A simple answer might be an example of any calculation which requires a formula (actual mileage for your vehicle, your electrical bill, converting from Fahrenheit to Celsius, the theory or relativity, etc.). As any mathematician can explain, many of our simpler formulas can be worked through using basic mathematics. However, as the formula becomes more complicated, often simple math without using variables, becomes a cumbersome, time consuming, or sometimes an impossible task without resorting to algebra.