Matematika

Pertanyaan

x + 3y = 7
2x + 5y = 13

Penyelesaian SPLDV dengan metode Eliminasi

2 Jawaban

  • x + 3y = 7 |×2
    2x + 5y = 13

    2x+6y=14
    2x+5y=13
    ---------------- -
    y=1

    x+3(1)=7
    x=4
  • X + 3y = 7          |x2|   2x+6y=14
    2x + 5y = 13       |x1|   2x+5y=13
                                   ----------------- -

                                               y=1

    X + 3y = 7          |x5|   5x+15y=35
    2x + 5y = 13       |x3|   6x+15y=39

                                       ----------------- -

                                                -x=-4

                                                  x=4

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