It would most likely be D theory
I need more information to answer this
Combine like terms
8x+24=x+5
subtract x from both sides
8x+24=x+5
-x -x
7x+24=5
subtract 24 from both sides
7x+24=5
-24 -24
7x = -19
divide 7 from both sides
7x = -19
7x/7 = -19/7
x= -19/7
Since they reduced the markup price, or higher price, by 10%, the new markup price is 20% over the manufacturer price.
