7Х + 13.48 = 97.9
7Х = 97.9 - 13.487Х = 84.42Х = 84.42 : 7 Х = 12.06ответ: Х = 12.0657.3 - 11Х = 18.14- 11Х = 18.14 - 57.3- 11Х = - 39.16Х = - 39.16 : ( - 11)Х = 3.56ответ: 3.56 17.6 : Х - 2.27 = 1.73
17.6 : Х = 1.73 + 2.2717.6 : Х = 4Х = 17.6 : 4Х = 4.4ответ: Х = 4.4
(Х - 8.59) * 6 = 17.496Х - 51.54 = 17.496Х = 17.49 + 51.546Х = 69.03
Х = 69.03 : 6Х = 11.505ответ: 11.505(Х + 2.67) : 7 = 0.86Х + 2.67 = 0.86 * 7
Х + 2.67 = 6.02Х = 6.02 - 2.67Х = 3.35ответ: Х = 3.35(5Х - 23.8) : 2 = 37.6
5Х - 23.8 = 37.6 * 25Х - 23.8 = 75.25Х = 75.2 + 23.85Х = 99Х = 99 : 5Х = 19.8ответ: Х = 19.8Х + Х + Х + Х = 5.464Х = 5.46Х = 5.46 : 4Х = 1.365ответ: 1.365
7Х + 13.48 = 97.9
7Х = 97.9 - 13.48
7Х = 84.42
Х = 84.42 : 7
Х = 12.06
ответ: Х = 12.06
57.3 - 11Х = 18.14
- 11Х = 18.14 - 57.3
- 11Х = - 39.16
Х = - 39.16 : ( - 11)
Х = 3.56
ответ: 3.56
17.6 : Х - 2.27 = 1.73
17.6 : Х = 1.73 + 2.27
17.6 : Х = 4
Х = 17.6 : 4
Х = 4.4
ответ: Х = 4.4
(Х - 8.59) * 6 = 17.49
6Х - 51.54 = 17.49
6Х = 17.49 + 51.54
6Х = 69.03
Х = 69.03 : 6
Х = 11.505
ответ: 11.505
(Х + 2.67) : 7 = 0.86
Х + 2.67 = 0.86 * 7
Х + 2.67 = 6.02
Х = 6.02 - 2.67
Х = 3.35
ответ: Х = 3.35
(5Х - 23.8) : 2 = 37.6
5Х - 23.8 = 37.6 * 2
5Х - 23.8 = 75.2
5Х = 75.2 + 23.8
5Х = 99
Х = 99 : 5
Х = 19.8
ответ: Х = 19.8
Х + Х + Х + Х = 5.46
4Х = 5.46
Х = 5.46 : 4
Х = 1.365
ответ: 1.365