This math topic focuses on solving equations involving exponents, specifically the sum of two powers of a variable. Each problem involves determining the value of 'x' in expressions where two terms, each a power of 'x' that may differ by a constant, are equated to a given number. This is part of a broader study on exponents, including negative and fractional exponents, as well as power laws. The skill practiced is crucial for understanding properties of exponential functions and their applications.