.) First begin with the left side of the equation: (1/9)* we know that 1/9 is simply 9 using the negative exponent rule we will convert to 9-x 2.) Now we move to the right side of the equation: 729, let's create equivalent expressions with equa bases, from 729 to 93 3.) Now we have 9-* = 93 since the bases are the same then the two expressions are only equal if the exponents are also equal, 9* = 93 becomes -x = 3