Matematika

Pertanyaan

5x + 3y = -19
-2x + y = -8

Selesaikan dgn cara eliminasi?

1 Jawaban

  • 5x+3y = -19 | x1 | 5x+3y = -19
    -2x+y = -8 | x3 | -6x+3y = -24
    ———————— -
    11x = 5
    x = 5/11


    5x+3y = -19 | x2 | 10x+6y = -38
    -2x+y = -8 | x5 | -10x+5y = -40
    _____________ +
    11y = -78
    y = - 78/11 = - 7 8/11

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