By simply dividing or multiplying both sides by negative one, this guy cancels becomes a positive. This guy becomes a negative. We get ten to the negative 7.41 is equal. Now we take our calculator, we simply plug it into our calculator and we find our result, namely 3.89 times ten to the negative eight molar. And this is equivalent to this guy and this guy. This is our hydrogen ion concentration as well as our hydronium ion concentration.