Answer:
x =  , y = -1.71
 , y = -1.71
Step-by-step explanation:
sub y = x+4 in the first equation to get: 
12 x - 5 (x+4) = -20 
Simplify: 
12 x - 5 x + 20 = -20 
Further simplify: 
7 x = - 40
Divie both sides by 7 to get: 
x =  
 
--> x = -5.7
Sub x =  in the second equation to get:
  in the second equation to get: 
y =  + 4  = -1.71
  + 4  = -1.71
 
        
                    
             
        
        
        
Answer:
1.6
Step-by-step explanation:
i used a calculator
 
        
                    
             
        
        
        
Answer:
Ay una aplicacion para cosas de matematicas se llama (m a t h w a y) y tambien te ensena los ejemplos
 
        
             
        
        
        
Answer:
Please put the equation.
Step-by-step explanation:
 
        
             
        
        
        
This answer to this question is 1150 km