Matematika

Pertanyaan

Tentukan himpunan selesaian
1. X - 5 = 4
2. 5 + x = 17
3. 7 = 18 - x
4. 2x - 3 = x + 7
5. 17 + 2x = 3x + 13

1 Jawaban

  • 1.
    x-5 = 4
    x = 4+5
    x = 9

    2.
    5+x = 17
    x = 17-5
    x = 12

    3.
    7 = 18-x
    x = 18-7
    x = 11

    4.
    2x-3 = x+7
    2x-x = 7+3
    x = 10

    5.
    17+2x = 3x+13
    2x-3x = 13-17
    -x = -4
    x = 4

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