10 + 50(1.95 : 1.3) - 110 + 50(1.5) - 110 + 75 - 185 - 175
Therefore, 10 + 50(39/20 : 13/10) - 10 equals 75.
10 + 50(1.95 : 1.3) - 1
10 + 50(1.5) - 1
10 + 75 - 1
85 - 1
75
Therefore, 10 + 50(39/20 : 13/10) - 10 equals 75.