Answer:
answer in in the photo with a explanation
Assuming this is the equation you want to operate on:



Before final operation we have to assume that x is not equal to 0. :)
Answer:
Step-by-step explanation:
Let the monthly rent be x.
<u>Then we have:</u>
- x + 0.5x + 0.4x = 3800
- 1.9x = 3800
- x = 3800/1.9
- x = 2000
Monthly rent is $2000
First one is correct hope this helped