Answer:
4/1
Step-by-step explanation:
hope that helps :))))
 
        
             
        
        
        
I forgot that but good luck
        
             
        
        
        
Answer:
The answer is Triangle C
Step-by-step explanation:
 
        
             
        
        
        
Answer:
what are you talking about the picture is not there
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
This system has infinite solutions and it would be much easier to solve it by elimination but substitution it is. 
Step-by-step explanation:
-3x+3y=9
-x+y=3
Isolate either x or y in any of the equations. I'll go with the second.
y = 3+x 
Now substitute this for y in the first equation.
-3x+3(3+x)=9
Distribute the 3
-3x+9+3x=9
Combine like terms:
9=9
0=0
It's infinite