Given: 3x+7+2(4x+1) = 3(x-1) -4 prove: x=-2 
       
      
                
     
    
    
    
    1  answer:
            
              
Answer: 
x = -2, proven below.
Step-by-step explanation: 
3x + 7 + 2(4x+1) = 3(x-1) - 4
3x + 7 + 8x + 2 = 3x - 3 - 4
9 + 11x = 3x - 7
16 + 11x = 3x
16 = - 8x
-2 = x
 
                                
             
         	
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