Matematika

Pertanyaan

jawab pakai cara ya pliss tolong beso dikumpul nah. pakai cara ya makasih banya jo
jawab pakai cara ya pliss tolong beso dikumpul nah. pakai cara ya makasih banya jo

1 Jawaban

  • Penyelesaian:

    b. [tex] \frac{1}{3} (6x + 9) = \frac{1}{4} (2x + 4)[/tex]
    2x + 3 = 1/2.x + 1
    3/2.x = -2
    3x = -4
    x = -4/3

    c. 2 - 3(1 - 2x) = 5 - 2(2x + 3)
    2 - 3 + 6x = 5 - 4x - 6
    -1 + 6x = -4x - 1
    6x + 4x = 0
    10x = 0
    x = 0

    d. [tex] \frac{2x - 11}{3} + 5 = \frac{1 + x}{2} - 4[/tex]
    [tex] \frac{2x - 11 + 15}{3} = \frac{1 + x - 8}{2} [/tex]
    [tex] \frac{2x + 4}{3} = \frac{x - 7}{2} [/tex]
    4x + 8 = 3x - 21
    x = -29

    e. [tex] \frac{4x + 3}{3} + \frac{4}{3} (1 - x) = \frac{6x + 5}{3} [/tex]
    4x + 3 + 12/5(1 - x) = 6x + 5    (kedua ruas di kali 3)
    4x + 3 + 12/5 - 12/5.x = 6x + 5
    8/5.x + 27/5 = 6x + 5
    22/5.x = 2/5
    22x = 2
    x = 1/11