Matematika

Pertanyaan

selesaikan persamaan di bawah ini

1. 10y+2= -13
2. 15 p -5= -2
3.5(y+5)=-2
4.6(p+5)=-3(2p-1)
5.15×=2
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3
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1 Jawaban

  • 1. 10y + 2 = -13
    => 10y = -13 - 2
    => y = -15/10
    => y = -1,5

    2. 15p - 5 = -2
    => 15p = -2 + 5
    => 15p = 3
    => p = 3/15
    => p = 0,2

    3. 5(y+5) = -2
    => 5y + 25 = -2
    => 5y = -2 - 25
    => 5y = -27
    => y = -5,4

    4. 6(p+5) = -3(2p-1)
    => 6p + 30 = -6p + 3
    => 6p + 6p = 3 - 30
    => 12 p = -27
    => p = -2,25

    5. 15x = 2
    => x = 2/15
    => x = 0,13

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