рівняння:
4x-2 = 14
3x + x + 2 = 18
3x-12 = x
4x-2 = 2x + 6
2x-2 = 6 + 4x

  • 4x-2 = 14

    4x = 14 + 2

    x = 16/4

    x = 4

    3x + x + 2 = 18

    4x = 18-2

    x = 16/4

    x = 4

    3x-12 = x

    3x-x = 12

    2x = 12

    x = 12/2

    x = 6

    4x-2 = 2x + 6

    4x-2x = 6 + 2

    2x = 8

    x = 8/2

    x = 4

    2x-2 = 6 + 4x

    2x-4x = 6 + 2

    -2x = 8

    -x = 8/2

    x = -4