Matematika

Pertanyaan

persamaan dua variabel -7x+6y=26 dan -3x-5y=13

1 Jawaban

  • -7x + 6y = 26|x1 |-7x + 6y = 26
    -3x - 5y = 13 |x2|-6x - 10y = 26
    ------------------------------------------- -
    .x + 16y = 0
    16y = x
    -7x + 6y = 26
    -112y + 6y = 26
    -106y = 26
    .y = 26 : -106
    = -0.245283
    .x = 16y
    = -0.245283 x 16
    = -3.924528

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