Answer:

Step-by-step explanation:

Divide 3 on both sides:

Add 1 to both sides:

Multiply by 7 on both sides:

 
        
             
        
        
        
Answer:
x  =  4
Step-by-step explanation:
Find 8 on the y-axis.  Draw a horizontal line through y =8.  Determine the x value for which the graph intersects this horizontal line y = 8.  It is x = 4
 
        
                    
             
        
        
        
Use photomath it will help you out fr
        
                    
             
        
        
        
Answer:
C
Step-by-step explanation:
The slope is 1.  Note how each time x increases by 1 unit, y also increases by 1 unit.
The y-intercept is (0, -1).
Answer C is correct.