Question 12315
 
       5n - 2(n - 2) = -11
 
    =  5n -2n + 4 = -11  ..........Removed the brackets.
  
    =  3n = -11 - 4
 
    =  3n = -15
 
    =  n = {{{-15/3}}}  = -5

    =  So n = -5  Ans.


gsm