The Answer is Commutative Property
18 + (-6) = 12
No.
There are infinitely many possible answers. 1.5 + 2.5 + 18 = 10 + 0 + 12
x + 12 = 18 Therefore, x = 18 - 12 x = 6
The Answer is Commutative Property
-6
18
18 + (-6) = 12
12 + 16 + 18 + 20 + 9 = 75
60.
No.
There are infinitely many possible answers. 1.5 + 2.5 + 18 = 10 + 0 + 12
x + 12 = 18 Therefore, x = 18 - 12 x = 6
It is: 12+(-4)-(-10) = 18
24
n + 6 = 18 n = 12