Answer:
<em>
and 
</em>
Step-by-step explanation:
According to the given diagram, points C, B and D are in a straight line and AB is a common terminal side of both 
and 
.
So, and are pair of linear angles.
In the diagram, we can see that the side 
lies on 
from left side and on 
from right side.
So,
and
Answer: x = -9/ addition property of equality
Explanation: In this problem, we're given that x - 7 = -16 and we're asked to solve the equation and explain which equality we used.
The first statement we have will be
the given statement which is x - 7 = -16.
Now, we just solve the equation.
Our first and only step will be to add 7 to both sides.
Then, we find that x = -9.
The property we used here was the addition property of equality.
This property tells us that we can add the same quantity,
or equal quantities, to both sides of an equation.
