Answer:
idk a or c
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=1 & y=6 or (1,6)
Step-by-step explanation:
3x-x+5=7   Substitute the 2nd equation in for y  
2x+5=7      Do 3x-x to get 2x
2x=2          Subtract 5 from both sides
x=1              Divide 2 from both sides
y=1+5          Insert 1 as x
y=6             Add 1+5 to solve for y
Hope this helped!  
 
 
        
                    
             
        
        
        
(m - n)(r - s) Hope this helps and heve a nice day!
        
                    
             
        
        
        
Start at 4.
So far you have: 4
Now you go 7 units left. Going left means a subtraction. Going 7 units left means subtracting 7.
So far you have: 4 - 7
The result is -3.
The subtraction is:
4 - 7 = -3
 
        
             
        
        
        
m pq = 2 Have a good day! sorrey if i'm wrong