You may want to review logarithms first.

You can solve equations involving logarithms. But you have to be careful to read them carefully, to see where the x is! If the equation is log1 ⁄ 2 (1 ⁄ 2) = x, say, then it's just asking you to compute log1 ⁄ 2 (1 ⁄ 2), just as in the last section; the answer is x = 1. If you're asked to solve logx (3 ⁄ 11) = 1, that means that x1 = 3 ⁄ 11. The answer is then x = 3 ⁄ 11. Finally, if you're asked to solve log16 x = 2, that means that 162 = x; so now the answer is 256.