Electron is organizing the bookcase in the school library. He makes sure each shelf has 15 books on it. There are 9 shelves of m ath books and 6 shelves of science books.
       
      
                
     
    
    
    
    1  answer:
            
              
Answer: 
Total amount of books in the bookcase =  225 books
Step-by-step explanation: 
Each shelf is to have 15 books
Therefore total amount of books in the bookcase = {9×15} + {6×15} = 225 books
 
                                
             
         	
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I hope this helps you 
        
                    
             
        
        
        
-2x + 5 = -1
subtract 5 from both sides: -2x = -6
divide each side by -2: x = 3
plug in 3: 5(3)
multiply: 15
the value of 5x is 15.
 
        
                    
             
        
        
        
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