if | y + 7 | = 12 , what is the sum of all the possible values of y ?
there will be two cases y + 7 = 12 or y + 7 = - 12 = > y = 5 or y = - 19 sum of both the values will be - 19 + 5 = - 14 answer : a
add(subtract(12, 7), subtract(negate(12), 7))