a number is doubled and 5 is added . if the resultant is trebled , it becomes 123 . what is that number ?
"explanation : let the number be x . therefore , 3 ( 2 x + 5 ) = 123 6 x + 15 = 123 6 x = 108 x = 18 answer : d"
divide(subtract(123, multiply(const_3, 5)), multiply(const_3, const_2))