Use the elimination method to find all solutions of the system of equations.

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   Use the elimination method to find all solutions of the system of equations.

 
4x + 2y = 22
8x + y = 35
(xy) = 
  
Apr 20th, 2015

multiply 4x + 2y = 22 by 2

so, 8x + 4 y =44 -                 subtract this from  

     8x + y    = 35 

 gives,   3y = 9

y=3.......................................

so, 4x + 2y = 22

   4x + 2 *3 =22

  x=4......................

answers are x=4 and y =3.....................................................


Apr 20th, 2015

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