Matematika

Pertanyaan

1)  x + 8 < 5
2)  3y - 4 > 11
3)  3(x - 2) < x + 8
4)  1/2x + 4 > 2/3x + 3
5)  1/5(x + 6) < 1/3 (x - 2)

Tolong di jawab sekarang ya.. mau di kumpulkan sekarang trm mksh :)

1 Jawaban

  • x + 8 < 5, x < 5-8, x<-3

    3y - 4 > 11, 3y > 11+4, 3y>15, y> 15/3, y>5

    3(x - 2) < x + 8, 3x-6 < x+8, 3x-x<8+6, 2x<14, x<14/2, x<7

    1/2x + 4 > 2/3x + 3, dikali 6.
    6 (
    1/2x + 4) > 6 (2/3x + 3)
    3x + 24 > 4x +18, 3x-4x > 18-24, -x>-6, x>6

    1/5(x + 6) < 1/3 (x - 2), dikali 15
    15 [1/5(x + 6)]< 15 [1/3 (x - 2)]
    3x + 90 < 5x -30, 3x-5x < -30-90, -2x < -120, x<60

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