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Activity Discussion Math Elimination Method

  • Elimination Method

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

    Evaluate the following :

    2x + y = 8

    4x + 3y = 9

    Shriya replied 1 year 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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