9+9=18
2+14=16
160
60.
Commutative propertry
Equality
72 but there is such a thing as a CALCULATOR
2+14=16
U = 4 x 18 U = 72
How do you add 2x plus 3y equals 18 in 5x-y equals 11
18+18+18+19+23+23+24+24=167
No.
21
69
No.
49+18= 67
The Answer is Commutative Property
160