а) Уравнение: x/2 - x/12 = 3 - x/3Упростим: 6x/12 - x/12 = 36/12 - 4x/125x/12 = (36 - 4x)/125x = 36 - 4x5x + 4x = 369x = 36x = 36/9x = 4
б) Уравнение: x/8 - x/4 + x/2 - x = 1Упростим: 2x/8 - 4x/8 + 8x/8 - 8x/8 = 8/82x - 4x + 8x - 8x = 1-2x = 1x = -1/2
в) Уравнение: 5x/9 - 2x/3 - x = 4Упростим: 5x/9 - 6x/9 - 9x/9 = 36/9-4x/9 = 36/9-4x = 36x = -36/4x = -9
Ответ:а) x = 4б) x = -1/2в) x = -9
а) Уравнение: x/2 - x/12 = 3 - x/3
Упростим: 6x/12 - x/12 = 36/12 - 4x/12
5x/12 = (36 - 4x)/12
5x = 36 - 4x
5x + 4x = 36
9x = 36
x = 36/9
x = 4
б) Уравнение: x/8 - x/4 + x/2 - x = 1
Упростим: 2x/8 - 4x/8 + 8x/8 - 8x/8 = 8/8
2x - 4x + 8x - 8x = 1
-2x = 1
x = -1/2
в) Уравнение: 5x/9 - 2x/3 - x = 4
Упростим: 5x/9 - 6x/9 - 9x/9 = 36/9
-4x/9 = 36/9
-4x = 36
x = -36/4
x = -9
Ответ:
а) x = 4
б) x = -1/2
в) x = -9