the result when a number subtracted from 100 is the same as the number added to 40 . what is the number ?
"answer let the number be x . then , x - 40 = 100 - x â ‡ ’ 2 x = 100 + 40 = 140 â ‡ ’ 2 x = 140 â ˆ ´ x = 70 correct option : a"
add(divide(subtract(100, 40), const_2), 40)