Answer:
He should sell them he would be rich.
Step-by-step explanation:
 
        
             
        
        
        
Answer 
11a + 4a= 15a
3x + 6 +7x -4 = 12x 
-12m -3 + 4m + 16 = 29m 
6k-4+k-2 =4K 
3+13-5p-2p =9p 
I think these are the answers please don’t get mad if they are not hope I help :)
        
                    
             
        
        
        
C)!!!! Probably too late? ;)
        
             
        
        
        
99(x-77)=99(x+88)
99x-7623=99x+8712
99x-99x=8712+7623
0=670824.no solution as x becomes 0