We add five to both sides, we get two x is less than five. Divide both sides by two, you get x is less than 5 1⁄2. So it might be tempting to say, all right, the intervals that matter are all the x's less than 5 1⁄2, but x cannot be equal to zero. Now, is that the entire interval where our function is decreasing? Well, let's think about what happens at zero itself. We're decreasing over the interval from negative infinity all the way up to zero, and we're also decreasing from zero to 5 1⁄2. And so if we're decreasing right to the left of zero, we're decreasing right to the right of zero, we're actually going to be decreasing at zero at, we're also going to be decreasing at zero as well.