Question

How do you solve `2x - 1 < 9`?

Answer 1

Solve for `x` just like we do when there is an equals sign to get `x<5`

Explanation:

First we need to solve for `x`, just like we do when there is an equals sign by adding 1 to both sides:

`2x-1<9`
`2x<10`

Let's divide by 2:

`x<5`

And that's the answer. Keep in mind that if you multiply or divide by a negative number, the "fish mouth" will change direction! We didn't in this example but in future questions I'm sure you'll face that possibility.