Matematika

Pertanyaan

tentukan himpunan penyelesaian SPLDV berikut dengan metode sub 3x+2y=5 5x+y=13

2 Jawaban

  • 5x+y = 13
    y = 13-5x
    3x + 2(13-5x) = 5
    3x+26-10x = 5
    -7x = -21
    x = 3

    3*3+2y = 5
    9+2y = 5
    2y = -4
    y = -2

    HP = {3,-2}
  • Two-Variable Linear Equation System
    Mathematics
    Class 8 SMP

    "Substitution Method"

    Settlement

    5x + y = 13
            y = 13 - 5x

                3 x + 2y = 5
    3x + 2 (13 - 5x) = 5
        3x + 26 - 10x = 5
                  26 - 7x = 5
                        -7x = -21
                           x = 3

    y = 13 - 5x
       = 13 - 5 (3)
       = 13 - 15
       = -2


    I hope this helps!!! 

Pertanyaan Lainnya