Answer:
the answer is 5 I think I hope
- 18
2- 20
= -18
Because you do the same thing just going to end up with a negative.
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 
X + 4 = 19 -2x
3x = 15
x=5
5 is the number