Answer: 27a^3
It is 27a^3 because if you do 3×3=9 then 9×3= 27
 
        
                    
             
        
        
        
Answer:
x = 4
Step-by-step explanation:
subtract 2 from both sides. then -4x is equal to -16. divide by -4 which gives you 4. Hope this helped!
 
        
                    
             
        
        
        
Answer:
The answer is 27
Step-by-step explanation:
The reason being, you can solve this 2 ways. 
1) Combine like terms, 7a-4a = 3a.
Now just substitute (a=9) into 3a. 
3 * (9) = 27. 
2) Or just substitute a = 9 into the original expression. 
7 * (9) - 4 * (9) 
= 63 - 36 = 27
 
        
                    
             
        
        
        
Are there any answer choices because this question has multiple answers.
        
             
        
        
        
X+3<11
x<8
thatll be your answer