Example 5 (Unequal Base – put log both side) 4 Feb,2014 userLeave a comment Example 5 Solve each of the following. (a) ${3}^{x+1}=7$ (b) $2({3}^{x})=5$ (c) ${2}^{x}{.3}^{x}={9}^{x-4}$ (d) ${5}^{x-1}{.3}^{x+2}=10$