Answer:
45
Step-by-step explanation:
2x+x+x=180
4x=180
180 divided by 4
So here's what I'd do. Convert both mixed numbers to improper fractions (fractions greater than one). So you get 33/8 and 19/8. Now subtract. 33/8 - 19/8 = 14/8.
14/8 is your answer.
The answer in point slope form unsimplified is y+1=-3(x+4)