Question 158808
.80x=(x-20)1.50-54
.80x=1.5x-30-54
.8x-1.5x=-84
-.7x=-84
x=-84/-.7
x=120 bags were bought.
Proof:
.80*120=(120-20)1.5-54
96=100*1.50-54
96=150-54
96=96