If you do that, if you multiply the entire thing times negative 1, this quantity right here, this negative 2.13 will become a positive 2.13. But since we are multiplying an inequality by a negative number, you have to swap the inequality sign. So this less than will become a greater than. This negative mu will become a positive mu. This positive 17.17 will become a negative 17.17. We have to swap this inequality sign as well. And this positive 2.13 will become a negative 2.13.