How do you solve 5x+4 <39?

1 Answer
sf
Jun 15, 2018

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)

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