• Math

  Elimination Method

  Posted by D on June 24, 2023 at 6:43 pm

  Evaluate the following :

  2x + y = 8

  4x + 3y = 9

  Shriya replied 3 months, 1 week ago 2 Members · 1 Reply
• 1 Reply

• 

  Shriya

  Member

  June 24, 2023 at 8:18 pm

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  The given system of equations is:

  2x + y = 8

  4x + 3y = 9

  Multiplying the first equation by 3 and subtracting the second equation from it:

  6x + 3y – (4x + 3y) = 24 – 9

  2x = 15

  x = 15/2

  Substituting the value of x in the first equation:

  2(15/2) + y = 8

  15 + y = 8

  y = -7

  So the solution to the system of equations is x = 15/2 and y = -7.

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