Section: Mathematical Reasoning
				
                
                
                
                    
                        
                            
                        
                        26)
                        
                        Solve using the substitution method: 
NOTE: Round long decimals to the nearest one hundredth. 
y = 3x - 87
3x + 2y = 21
 
                    
                    
                    
                 
				
                    
    
        
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