Question 931774
Let M = Monday
    T = Tuesday
    W = Wednesday

Central Freight dispatched 5 fewer trucks on Monday than on Tuesday.
T = M + 5

The company dispatched 9 more trucks on Wednesday than on Tuesday.
W = T + 9

The total number of trucks dispatched on the three days was 175 trucks.
M + T + W = 175
M + M + 5 + M + 5 + 9 = 175
3M = 156
 M = 52
 T = 57
 W = 66

The correct answer is 52 trucks dispatched on Monday, 57 trucks dispatched on Tuesday, and 66 trucks on Wednesday.