The equation is 
The solved equation is 11
First, we must add 13 on both sides

The answer to the equation is 
Answer:
C. -2.5 - 6.5n
Step-by-step explanation:
i just think thats the answer
Answer:
1. x= -4
2. x= 18
3. x= -15
4. x = 6
Step-by-step explanation:
Use relationship of angles to create equations and solve for x
The simplified form would be -4×^2-13x+9