Which number is NOT in the solution set of x − 9 > 3?
A)	11	
B)	13	
C)	15	
D)	17
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
Answer:
A
Step-by-step explanation:
Given
x - 9 > 3 ( add 9 to both sides )
x > 12
13, 15 and 17 are all greater than 12
However, 11 is less than 12 and is not in the solution set → A
 
                                
             
                    
              
              
                
                
Answer:
A) 11.
Step-by-step explanation:
x − 9 > 3     Add 9 to both sides:
x > 3 + 9
x > 12.
The only number in the list that is not greater than 12 is 11.
 
                                
             
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