Matematika

Pertanyaan

berapakah hasil dari pertanyaan berikut :
1). 4y + 8 = 2y
2). 8y - 14 = 5y -2
3). 4 ( 1- P ) + 3 ( P + 5 ) = 8
4). 4 ( 2y - 1 ) + 10 = 6 ( 4 + y )
5). X/3 - 1 = 3 + X/2
6). 1/3 ( X + 2 ) = 1/4 ( X - 1 )

TOLONG BANTU JAWAB YA....

1 Jawaban

  • 1).4y + 8 = 2y
    4y - 2y = 8
    2y = 8
    y = 8/2
    y = 4

    2).8y - 14 = 5y - 2
    8y - 5y = -2 + 14
    3y = 12
    y = 12/3
    y = 4

    3).4 (1 - P) + 3 (P + 5) = 8
    4 - 4P + 3P + 15 = 8
    - 4P + 3P = 8 - 4 - 15
    P = - 11

    4).4 (2y - 1) + 10 = 6 (4 + y)
    8y - 4 + 10 = 24 + 6y
    8y - 6y = 24 + 4 - 10
    2y = 18
    y = 18/2
    y = 9

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