Matematika

Pertanyaan

1. 3x+4<10
2. 5+x< 11-3x
3. 3(2x+1)>2x+4
4. 2x-6=10
5. 3x+2=2x-4
6. 8x-4=5-x

1 Jawaban

  • 1. 3x+4<10
    => 3x < 6
    => x < 2

    2. 5+x< 11-3x
    => 4x < 6
    => x < 3/2

    3. 3(2x+1)>2x+4
    => 6x +3 > 2x +4
    => 4x > 1
    => x > 1/4

    4. 2x-6=10
    => 2x = 16
    => x = 8

    5. 3x+2=2x-4
    => x = -6

    6. 8x-4=5-x
    => 9x = 9
    => x = 1

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