Matematika

Pertanyaan

Tentukan nilai × dan y dari sistem persamaan 3× +2y=12
4× - 3y =50

2 Jawaban

  • 3x+2y=12
    3x=12-2y
    x=4-2/3y
    x=4-2/3y, y(0,6)

    4x-3y=50
    4x=50+3y
    x=25/2+3/4y
    x=25/2+3/4y, y (0,-50/3)
  • 3× +2y=12 x4
    4× - 3y =50 x3
    **********************
    12x + 8y = 48
    12x - 9y = 150
    **********************
    17y = -102
    y = -102/17
    y = 6

    3x + 2y = 12
    3x + 2(6) = 12
    3x + 12 = 12
    3x = 0
    x = 0/3
    x = 0

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