Answer:
x=2 , y=6
Step-by-step explanation:
         3 x + 2 y =    18
         3 x +     y =   12
      (-)       (-)         (-)
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                      y =    6
                   
3x+6=12
=>3x=12-6
=>3x=6
=>x=6/3
=>x=2
 
        
             
        
        
        
The multiplicative of 6 is 1/6
        
             
        
        
        
If there are 10 dogs in each room there are 40 dogs
        
             
        
        
        
Answer:
(5k+14)(3k+8)
Step-by-step explanation: