Answer:
There doesn't seem to be numbers to answer that, do you have the question right? If it was a difference of 18, for example, the numbers would be 64 and 36.
Step-by-step explanation:
Find 2 numbers that added together, equal 10. 
91
82
73
64
55
46
37
28
19
Then subtract them by their opposites. Find the numbers with the difference of 12. 
91 - 19 = 72
82 -  28 = 54
73 - 37 = 36
64 - 46 = 18
55 - 55 = 0
46 - 64 = -18
37 - 73 = -36
28 - 82 = -54
19 - 91 = -72
There is no numbers with the difference of 12.
If it was a difference of 18, for example, the numbers would be 64 and 36.
 
        
             
        
        
        
Answer:
-28-3x-4=2x+12+x
-32-3x=3x+12
6x=44
x=44/6=22/3
Step-by-step explanation:
 
        
             
        
        
        
Hello! So I understood your question as what M means. M is 49, 49-28=21