The value of an industrial machine has a decay factor of 0.75 per year. after six years, the machine is worth $7,500. what was the original value of the machine?

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.