Answer:
negative
slope= -1/4
Step-by-step explanation:
 
        
             
        
        
        
4n-40=7(-2n+2)
4n-40=-14n+14
subtract -4n from both sides
-40 = -18n +14
subtract -14 from both sides
-54=-18n
divide both sides by -18
3 = n
 
        
                    
             
        
        
        
Answer:
D)
Step-by-step explanation:
Right on Edge 2021
 
        
             
        
        
        
Answer:
C) Infinitely many
Step-by-step explanation:
7x+3-x=3(1+2x)
6x+3=3+6x
Subtract 3 from both sides
6x = 6x
Infinitely many solutions
 
        
             
        
        
        
Substitute y = -x into the first equation:
-8x - 7(-x) = -5
-8x + 7x = -5
-x = -5
x = 5
Substitute x = 5 into y = -x 
y = -(5)
y = -5
Answer: x = 5, y = -5