And so these would cancel out. We can say that this equivalent to x plus three, as long as x does not equal three, and that's okay, because we're approaching from the left. And as we approach from the left, well, x plus three is defined for all real numbers, it's continuous for all real numbers, so we can just substitute the three in there. So we would get a six. So now let's try to evaluate the limit as we approach from the right-hand side. So once again, it's f of x, but as we approach from the right-hand side, f of x is six x minus nine. That's our f of x.