The profit P (in dollars) from selling x calculators is P =25x-(10x+250). How many calculators are sold when the profits are $425?

To solve this all you need to do is plug 425$ in for P.

425 = 25x - (10x + 250)

*Distribute the negative sign*

425 = 25x - 10x - 250

*Add 250 on each side*

675 = 25x - 10x

*Combine like terms*

675 = 15x

*Divide by 15*

x = 45