Answer:
393
Step-by-step explanation:
(32)(12) + 9
This comes out to 384 + 9 = 393
 
        
                    
             
        
        
        
D, 7-7 = 0
1-1 = 0
0 x 0 = 0
        
             
        
        
        
Standard form : Ax + By = C
12y = 9x - 30
-9x + 12y = -30 ....some teachers accept this, with A being negative
but if not, then it is this :
9x - 12y = 30