Respuesta :
By solving a linear equation, we will see that he needs to work for 9 years.
How long will take Lou to earn 18 vacation days?
We know that for each year that he works, he gets 2 vacation days.
So we can write the linear equation:
y = 2*x
Where y is the number of vacation days, and x is the number of years that he worked.
We want to find the value of x such that y = 18, then we need to solve:
18 = 2*x
Solving for x w get:
18/2 = x = 9
This means that to get 18 vacation days, he needs to work for 9 years.
If you want to learn more about linear equations, you can read:
https://brainly.com/question/4074386