Question 1174243
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Hi



{{{A= (matrix(3,3,1,2,3,3,1,1,2,3,4))}}}



{{{A^(-1) = (1/2)(matrix(3,3,1,1,-1,-10,-2,8,7,1,-5))}}}


  {{{(matrix(3,3,1,1,-1,-10,-2,8,7,1,-5))}}} *{{{(matrix(3,1,73,49,106))}}} ={{{(matrix(3,1,16,20,30))}}}

Note:
   (1)73 + (1)49 + (-1) 106 = 16
  -730  - 98 + (8)106 = 20  
   (7)73 + 49 + (-5)106= 30


 (1/2){{{(matrix(3,1,16,20,30))}}}  = {{{(matrix(3,1,8,10,15))}}}

   (8,10,15)  the solution for this system of Equations


Wish You the Best in your Studies.
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