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How to solve an inequality math problem?

In: Math and Arithmetic, Algebra [Edit categories]

Answer:

Similar to an equation. The main difference is the following: when you multiply or divide by a negative number, you have to switch the sign. Example:

-3x < 12

Now divide by (-3):

x > -4

Note that, since I divided by a negative number, I had to change the "less than" to a "greater than". This rule becomes somewhat complicated when you need to multiply or divide by the variable - you have to consider different cases.

First answer by Hilmarz. Last edit by Hilmarz. Contributor trust: 802 [recommend contributor ]. Question popularity: 2 [recommend question].

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