if 102 x = 25 , then 10 - x equals :
"102 x = 25 ( 10 x ) 2 = 52 10 x = 5 1 / 10 x = 1 / 5 10 - x = 1 / 5 answer : e"
divide(subtract(divide(multiply(102, const_100), const_2), const_2), add(divide(multiply(102, const_100), const_2), const_2))