24 ; 72; 18; 23; 17.
8 + 1 = 9 5 + 4 = 9 9 + 9 = 18 ( 8 + 1 + 5 + 4 = 18) The answer is 18.
-5+7--4+12 = 18
24!
It is: 5/18 plus 4/9 = 13/18
24
24
The problem of -5 plus 7 - (-4 plus -12) is equal to 18.
for n=4: (4 x 5) + 4 = 24
Yes because they all add up to 18
5 + 4 = 9It's 9.
24 / 6 + 5 4 + 5 9 The answer is 9.