Matematika

Pertanyaan

1. 4x-8=2(2-x)
2. 9<2x+5
3. 4x-8<4(2-x)
4. 8+2x<12+6x

1 Jawaban

  • 1.) 4x - 8 = 2(2-x)
    4x - 8 = 4 - 2x
    4x + 2x = 4+8
    6x = 12
    x = 2

    2.) 9 < 2x + 5
    -2x < 5-9
    -2x < -4
    x > 2

    3.) 4x -8 < 4(2-x)
    4x -8 < 8 -4x
    4x + 4x < 8+8
    8x < 16
    x < 2

    4.) 8 + 2x < 12 + 6x
    2x -6x < 12 - 8
    -4x < 4
    x > 1

Pertanyaan Lainnya