Answer:
n = 7
Step-by-step explanation:
3(n - 4) = 9
3n - 12 = 9
3n = 9 + 12
3n = 21
n = 21 ÷ 3
n = 7
 
        
             
        
        
        
Since y is anything greater than 2, you would draw a straight line across the point (from left to right) and if you had to shade you would shade above it (:
        
             
        
        
        
Answer: 63.3
Step-by-step explanation:
9.5v + 8.7w
v = 3 
w = 4
9.5(3) + 8.7(4)
28.5 + 34.8
63.3
 
        
                    
             
        
        
        
the additive inverse of -8 is 8 
to find the additive inverse you just have to change the sign of the number 
 
        
             
        
        
        
2x+4y=8
-2x       -2x 
4y=-2x+8
/4    /4   /4
y=-1/2x+2