Anyone know how to do this?

Explanation:

The 85 degree angle is smaller than the 90 degree angle (aka right angle). That must mean 5x-10 is smaller than 25

At the same time, 5x-10 must be larger than 0 to avoid having a 0 length or negative length.

So overall we can say 0 < 5x-10 < 25

Let's isolate x

0 < 5x-10 < 25

0+10 < 5x-10+10 < 25+10 adding 10 to all sides

10 < 5x < 35

10/5 < 5x/5 < 35/5 dividing all sides by 5

2 < x < 7

This says that x is between 2 and 7, but we cannot have x equal either endpoint.

answer: i guess 5 units?

step-by-step explanation: