Which shows how to solve the equation -4/5 x = 80 for x in one step?
A. -4/5 (5/4)x =80(5/4)
B. -4/5 (-5/4)x = 80 (-5/4)
C. -4/5 (-5)x = 80 (-5)
D. -4/5 (5) x= 80 (5)
