0
Wiki User
-9-(-4)=-5
-9+4=-5
Yes
5. Just do 9 minus 4. 5 plus 4 equals 9
4 plus 5 equals 9.
5
Commutative
-4
x=4 y=5 9x+7y=?? Replace: 9(4)+7(5)= 71
6 - 5/9 = 5 and 4/9
-9
9
-4 (-9 +5 = -4)