Aloha :)
$$\left.\phi\left(\frac{x-\mu}{\sigma}\right)\le0,14\quad\right|\;\phi^{-1}(\cdots)$$$$\left.\frac{x-\mu}{\sigma}\le-1,080319\quad\right|\;\cdot\sigma$$$$\left.x-\mu\le-1,080319\,\sigma\quad\right|\;+\mu$$$$\left.x\le\mu-1,080319\,\sigma\quad\right.$$$$x\le-0,46-1,080319\cdot13,630114=-15,184875$$
