How do you solve 723x<x8?

1 Answer
Dec 4, 2016

x>9

Explanation:

Usually the goal of solving any inequality or equality is to isolate a variable.

In this case we add 2x3 to both sides to get:

7<(53)x8

Then we add 8 on both sides to get:

15<(53)x

Now we divide by 53 on both sides to express the possible values of x in terms of a constant. We check to see if 53 is greater than 0. It is, so we can divide it on both sides without having to switch signs.

x>9