Need help with this 3(m + n) - 5 (2m-n)
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
3(m + n) - 5(2m - n)    |use distributive property a(b +/- c) = ab +/- ac
= 3m + 3n - 10m + 5n
= (3m - 10m) + (3n + 5n)
= -7m + 8n
= 8n - 7m
                                
             
                    
              
              
                
                
HI Cindy 
3(m + n) - 5(2m-n)
3m + 3n - 10m + 5n 
3m - 10m +5n -3n
7m - 2n 
I hope that's help:)
 
                                
             
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