Answer
$y=6^{1-x}$ (Green)
$y=25$ (Red)
By observation of the graph:
Solution: $x\approx-0.450$. It is just a visual approximation.
Algebraically:
$x=-0.427$
Work Step by Step
$6e^{1-x}=25$
$e^{1-x}=\frac{25}{6}$
$\ln e^{1-x}=\ln\frac{25}{6}$
$1-x=\ln\frac{25}{6}$
$x=1-\ln\frac{25}{6}=-0.427$
