i assume you mean what does x equal in this case. x = 0 here.
x-5+9=4
x+4=4
x=0
5. Just do 9 minus 4. 5 plus 4 equals 9
Commutative
13
144 9+7 = 16 and 9*16 = 144
Commutative Property of Addition
5. Just do 9 minus 4. 5 plus 4 equals 9
Commutative
4 + 4 + 1 = 9
Commutativity.
13
144 9+7 = 16 and 9*16 = 144
Commutative Property of Addition
The additive property.
23
the answer to that is 5
-13
26