1.5 = ((2 * x - 1) / 4) * 5
0.3 = (2 * x - 1) / 4
1.2 = 2 * x - 1
2.2 = 2 * x
x = 1.1
- 1 = ((3 * x - 1) / 4) * 2
- 1 / 2 = (3 * x - 1) / 4
- 2 = 3 * x - 1
- 1 = 3 * x
x = - 1 / 3
0.5 * ((2 * x + 6) / 5) = x - 1
(x + 3) / 5 = x - 1
x + 3 = 5 * x - 5
4 * x = 8
x = 2
0.3 * ((10 * x - 1) / 2) = 3 - x
(3 * x - 0.3) / 2 = 3 - x
3 * x - 0.3 = 6 - 2 * x
5 * x = 6.3
x = 1.26