Answer:
x = 2.25 or any number greater
Step-by-step explanation:
5x3 > 4 + 8 + x
Make them equal to each other to get x
5x3 = 4 + 8 + x
(5x)(3) = 12 + x
 - x - 3   - 3  - x
4x = 9

x = 2.25
Once you get x plug it in to get the truth of the expression
 
        
             
        
        
        
hope it helps you!!!!!!!!!
 
        
             
        
        
        
A line is 180°, so the supplementary angel makes up the difference between. 180 - 60 = 120°
        
             
        
        
        
Y=-2x-2 is the right answer