if a ( a - 5 ) = 6 and b ( b - 5 ) = 6 where a ≠ b , then a + b =
"i . e . if a = - 1 then b = 6 or if a = 6 then b = - 1 but in each case a + b = - 1 + 6 = 5 answer : option e"
subtract(subtract(subtract(subtract(add(add(5, 6), subtract(5, 6)), const_1), const_1), const_1), const_1)