1)
(0.2x - 7) - (6 - 0.1x) = 2
0.2x - 7 - 6 + 0.1x = 2
0.3x - 13 = 2
0.3x = 15
x = 15 / 0.3
x = 50
Ответ: x = 50
2)
(1 - 5.1x) - (1.7x + 5.4) = 1
1 - 5.1x - 1.7x - 5.4 = 1
-6.8x = 6.4
x = 6.4 / (-6.8)
x = -0.94117647059
Ответ: x = -0.94117647059
1)
(0.2x - 7) - (6 - 0.1x) = 2
0.2x - 7 - 6 + 0.1x = 2
0.3x - 13 = 2
0.3x = 15
x = 15 / 0.3
x = 50
Ответ: x = 50
2)
(1 - 5.1x) - (1.7x + 5.4) = 1
1 - 5.1x - 1.7x - 5.4 = 1
6.8x - 5.4 = 1-6.8x = 6.4
x = 6.4 / (-6.8)
x = -0.94117647059
Ответ: x = -0.94117647059