Answer:
Commutative
Step-by-step explanation:
Given

Required
What law is applied
The applied law is commutative law of addition.
This law states that:

So:

When the positions of 2 and b are interchanged, we have:

Remove bracket

-7.2x + 8.7x = -3.5 - 10
1.5x = -13.5
x = -13.5/1.5
x = -9
Answer:
A, B and D
Step-by-step explanation:
Answer:
<em>it's either A or B hope I helped a little</em>