Вопрос:
1) 10x - 11 = 4x - 7
Ответ:
10x - 4x = 11 - 7
6x = 4
x = 4/6 = 2/3
Похожие
- 2) 14x - 25 = 20x + 9
- 3) -3(5 - x) = 35 - 5x
- 4) 14x + 3 = 8x - 43
- 5) 18x + 9 = 32x + 14
- 6) 0,8(x - 2) + 2,6 = 0,5(7 + x)
- 7) -0,5(x - 4) - 7,3 = 0,8(2 – x)
- 8) (1,2x - 2)(8x + 5,6) = 0
- 12) (8y + 6)(1,8 – 0,4y) = 0