Matematika

Pertanyaan

1. ( x - 1 ) + ( 3x -2 ) = 6

Tolongg plss bantuu + pakai cara bsk di kumpulin plss

Pel ( persamaan nilai mutlak satu variabel )

2 Jawaban

  • (x - 1) + (3x - 2) = 6
    (x + 3x) + (-1 - 2) = 6
    4x - 3 = 6
    4x = 6 + 3
    4x = 9
    x = 9/4
  • Persamaan nilai mutlak

    |x -1| + | 3x -2| = 6

    a)
    (x -1) +(3x -2)= 6
    x - 1 + 3x - 2 = 6
    4x - 3 = 6
    4x = 9
    x = 9/4

    b)
    (1- x) + (2- 3x) = 6
    1 - x  + 2 - 3x = 6
    3 - 4x = 6
    -4x =3
    x = - 3/4

    HP x = (- 3/4 , 9/4)

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