a number is doubled and 5 is added . if the resultant is trebled , it becomes 105 . what is that number ?
"explanation : let the number be x . therefore , 3 ( 2 x + 5 ) = 105 6 x + 15 = 105 6 x = 90 x = 15 answer : d"
divide(subtract(105, multiply(const_3, 5)), multiply(const_3, const_2))