x, -x,-4, |-1.5|, |5|, |-6|
 
        
             
        
        
        
The simplest way to do this is to set up equivalent fractions. So, you'd do:

 = 

 and then solve for x. 
x=52
 
        
        
        
The angle of the triangle would be 72
        
             
        
        
        
9514 1404 393
Answer:
   y +1 = -3(x -3)
Step-by-step explanation:
The given point is (3, -1), and the given slope is -3. The form suggests you want the point-slope form of the equation for the line:
   y -k = m(x -h) . . . . . . . . line with slope m through point (h, k)
Using the given values, the equation is ...
   y -(-1) = -3(x -3)
   y +1 = -3(x -3)