Question

How do you solve `5x+4 <39`?

Answer 1

`x<7`

Explanation:

In a inequality you can add and subtract however you want to.

`5x+4<39`
Minus `4` both sides results in: `5x<35`

You can divide with a constant as long as its positive.

Dividing by `5` on both sides results in: `x<7`

Summary:
You can use a inequality just like a equation but you have to be very careful as sometimes you have to flip the inequality sign (if the operation you are applying is decreasing)