Answer:
d+7+3d+5=180
4d+12=180
4d=180-12
4d=168
d=42
-5 ÷ 4 = -1.25 or 1
The answer is -1.25
I hope that this helps you! ^‿^
btw it olny 8 points but it is c
Step-by-step explanation:
A
Step-by-step explanation: i am in math 8
lol