You need to represent it as   2x + 10 = 50
        
             
        
        
        
5.9 • 10^4
just add the two numbers because the exponents are equal.
        
             
        
        
        
I think the answer would be 
X=1.5
Y= -10 or -12 or 12
Sorry I'm not sure
        
                    
             
        
        
        
I can’t really see it get a clear picture
        
             
        
        
        
If u separate these into 2 triangles then they will become 90 degree triangles so angle a=angle c.