Answer:
Correct, as 4 is the only number repeating twice
Answer:
common difference is 4
Step-by-step explanation:
12-4=8
8-4=4
Answer:
a=-7.68
Step-by-step explanation:
3a+13.61=-9.43
-13.61
_____________
-23.04
3a=-23.04
-23.04/3= -7.68
I believe it is commutative property cause the numbers didn't change instead they just switched places in the equation.