![]() ![]() Take the negative of both of it, it'll be more negative, Think it'll give you comfort on why you're swapping Now, what happens if I multiplyīoth sides of this by negative 1? Negative 1 versus negative 2? Well, all of a sudden, negativeĢ is more negative than negative 1. ![]() Is less than 2, I think you would agree with that. That when you multiply or divide both sides of theĮquation by a negative number, you swap the inequality. Realize, though, when you do it with an inequality is Sides by the coefficient on the x term, and that is aĬompletely legitimate thing to do: divide both sidesīy negative 0.5. Your natural impulse is to say, hey, let's divide both So let's do a coupleĠ.5x is less than or equal to 7.5. To some other types of notations for describing the See that it's a little bit more tricky than just the addingĪnd subtracting numbers that we saw in the last video. Some inequalities that involve multiplying and dividingīy positive and negative numbers, and you'll
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