Matematika

Pertanyaan

tentukan HP dari:
A) 4(3-2y)=15-7y
B) 3(2y-3)=5(y-2)
C) 8-2(3-4y)=7y-1
D) 5x +7(3x +2)=6(4x +i)
TOLONG JAWAB DONG

2 Jawaban

  • A) 12-8y = 15-7y
    -8y+7y = 15-12
    -y = 3
    B) 6y-9 = 5y-10
    6y-5y = -10+9
    y = -1
    C) 18-24y = 7y-1
    -24y-7y = -1-18
    -31y = -19
    D) 5x+21x+14=24x+6i
    26x-24x = 14+6i
    2x = 20
    x = 10
    maaf kalo salah
  • a). 4(3-2y) = 15-7y
    12-8y = 15-7y
    -8y+7y = 15-12
    -y=3
    y= -3

    b). 6y-9 = 5y-10
    6y-5y = -10+9
    y = -1

    c). 8-2(3-4y) = 7y-1
    8-6+8y =7y-1
    8y -7y = -1-8+6
    y = -9+6
    y = -3

    d). 5x+7(3x+2)=6(4x+1)
    5x+21x+14 = 24x+6
    5x-24x = 6-21-14
    -19x = -29
    x = 19/29


    yg d) jawabannya pecahan

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