0
Wiki User
the answer to that is 5
5. Just do 9 minus 4. 5 plus 4 equals 9
Commutative
-4
19
-4 (-9 +5 = -4)
-9
4 plus 5 equals 9.
13
5
7+2+5= 14 35 42
If: x+(-5) = 4 Then: x = 9
144 9+7 = 16 and 9*16 = 144