How negative numbers flip the sign of the inequality — Krista King Math

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We solve inequalities the same way we solve equations, except that when we multiply or divide both sides of the inequality by a negative number, we have to do something special to it. Anytime you multiply or divide both sides of the inequality, you must “flip” or change the direction of the inequali

Hi, I'm Krista. Your geeky, trusty math tutor. I’m the nerd behind all these magical math tricks and the tutor that walks you through every single calculus expert lesson. I teach you how to learn math in a non-math way your brain can actually handle. I’m addicted to seeing people uncover those “Ah-ha!” moments, and we’ve made sure that every single lesson will deliver that same feeling of immense relief, giving you the easiest experience with math that you’ve ever had.