Answer:
-41
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
There is no solution for this set of equations.
The sum of two numbers can not have two different solutions.
 
        
             
        
        
        
Answer:
y = -5x+11
Step-by-step explanation:
 
        
             
        
        
        
Simplify brackets 
2/5(x - 4) = 2x
Simplify 2/5(x - 4) to 2(x - 4)/5
2(x - 4)/5 = 2x
Multiply both sides by 5
2(x - 4) = 10x
Divide both sides by 2
x - 4 = 5x
Subtract x from both sides 
-4 = 5x - x
Simplify 5x - x to 4x
-4 = 4x
Divide both sides by 4
-1 = x
Switch sides
<u>x = -1</u>