Matematika

Pertanyaan

Bila X - C = 7
X + C - V = 8
V + C = 8
X + C + V = ?

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1 Jawaban

  • x-c = 7 ยป x = 7+c

    x+c-v = 8
    7+c+c-v = 8
    7+2c-v = 8
    2c-v = 1

    c+v = 8
    2c-v = 1
    ________+
    3c = 9
    c = 3

    x = 7+c = 7+3 = 10

    c+v = 8
    3+v = 8
    v = 5

    x+c+v = 10+3+5 = 18

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