Answer
(a) $x=\frac{1}{12}\ln(\frac{17}{2})$
(b) $x\approx 0.178339$
Work Step by Step
(a) We need to solve:
$2e^{12x}=17$
$e^{12x}=\frac{17}{2}$
We take the log of both sides and use log rules to simplify:
$12x=\ln(\frac{17}{2})$
$x=\frac{1}{12}\ln(\frac{17}{2})$
(b) We solve using a calculator:
$x\approx 0.178339$