Matematika

Pertanyaan

himpunan penyelesaian dari sistem persamaan liner
5x-y-5=0
2x+y-16=0
adalah....

2 Jawaban

  • 5x-y = 5
    2x+y = 16
    _________+
    7x = 21
    x = 3

    5x-y=5
    5(3)-y = 5
    15-y = 5
    15-5 = y
    10 = y

    HP = {3,10}
  • 5x - y = 5
    2x + y =16
    _________+

    7x = 21
    x = 21/7
    x = 3


    5x - y = 5
    5(3) - y = 5
    15 - y = 5
    15- 5 = y
    y = 10

    HP = { 3, 10 }

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