9(x - 1) = x + 15
9x - x = 15 + 9
8х = 24
х = 3
(11x + 14) - (5x - 8) = 25
11x - 5x = 25 - 8 - 14
6х = 3
х = 0,5
12 - 4(x - 3) = 39 - 9x
12 - 4х + 12 = 39 - 9х
- 4х + 9х = 39 - 24
5х = 15
2(3x + 5) - 3(4x - 1) = 11,8
6х + 10 - 12х + 3 = 11,8
- 6х = - 1,2
х = 0,2
9(x - 1) = x + 15
9x - x = 15 + 9
8х = 24
х = 3
(11x + 14) - (5x - 8) = 25
11x - 5x = 25 - 8 - 14
6х = 3
х = 0,5
12 - 4(x - 3) = 39 - 9x
12 - 4х + 12 = 39 - 9х
- 4х + 9х = 39 - 24
5х = 15
х = 3
2(3x + 5) - 3(4x - 1) = 11,8
6х + 10 - 12х + 3 = 11,8
- 6х = - 1,2
х = 0,2