This document provides an introduction to solving equations involving indices and logarithms. It begins with examples of rewriting logarithmic expressions in exponential form and vice versa. The key rule discussed is that rewriting problems can help when getting stuck. Examples are then provided of solving logarithmic equations by setting the arguments equal when the bases are the same. It concludes by explaining that logarithmic expressions with negative bases are undefined since there is no exponential that equals a negative number.