Well I think it can help even better because since you already solved and proved your work you know what to do for your answer.
I think
First multiply 0.8 times m, then multiply 0.8 times -5.
This will give you 0.8m-4 = 10
Then add four to both sides to get you 0.8m =14.
Divide both sides by 0.8 to get m=17.5
Hope this helped. Good luck! :)
Answer:
x = -18
Step-by-step explanation:
1/2x = -9
(21)1/2x = -9(2/1)
x = -9/1(2/1)
x = -18/1
x = -18
The appreciation rate would be 6.31% per year.
