( | X | − | 200 | − | 150 | ) | ( | 1 | − | 25 100 | ) | ÷ | 3300 | = | ( | X | − | 200 | ) | ( | 1 | − | 25 100 | ) | ÷ | 3000 |
方程左边 = | X | ( | 1 | − | 25 100 | ) | × | 1 3300 | − | 200 | ( | 1 | − | 25 100 | ) | × | 1 3300 | − | 150 | ( | 1 | − | 25 100 | ) | × | 1 3300 |
= | X | ( | 1 | − | 25 100 | ) | × | 1 3300 | − | 2 33 | ( | 1 | − | 25 100 | ) | − | 1 22 | ( | 1 | − | 25 100 | ) |
= | X | × | 1 | × | 1 3300 | − | X | × | 25 100 | × | 1 3300 | − | 2 33 | ( | 1 | − | 25 100 | ) | − | 1 22 | ( | 1 | − | 25 100 | ) |
= | X | × | 1 3300 | − | X | × | 1 13200 | − | 2 33 | ( | 1 | − | 25 100 | ) | − | 1 22 | ( | 1 | − | 25 100 | ) |
= | 1 4400 | X | − | 2 33 | ( | 1 | − | 25 100 | ) | − | 1 22 | ( | 1 | − | 25 100 | ) |
= | 1 4400 | X | − | 2 33 | × | 1 | + | 2 33 | × | 25 100 | − | 1 22 | ( | 1 | − | 25 100 | ) |
= | 1 4400 | X | − | 2 33 | + | 1 66 | − | 1 22 | ( | 1 | − | 25 100 | ) |
= | 1 4400 | X | − | 1 22 | − | 1 22 | ( | 1 | − | 25 100 | ) |
= | 1 4400 | X | − | 1 22 | − | 1 22 | × | 1 | + | 1 22 | × | 25 100 |
= | 1 4400 | X | − | 1 22 | − | 1 22 | + | 1 88 |
= | 1 4400 | X | − | 7 88 |
1 4400 | X | − | 7 88 | = | ( | X | − | 200 | ) | ( | 1 | − | 25 100 | ) | ÷ | 3000 |
方程右边 = | X | ( | 1 | − | 25 100 | ) | × | 1 3000 | − | 200 | ( | 1 | − | 25 100 | ) | × | 1 3000 |
= | X | ( | 1 | − | 25 100 | ) | × | 1 3000 | − | 1 15 | ( | 1 | − | 25 100 | ) |
= | X | × | 1 | × | 1 3000 | − | X | × | 25 100 | × | 1 3000 | − | 1 15 | ( | 1 | − | 25 100 | ) |
= | X | × | 1 3000 | − | X | × | 1 12000 | − | 1 15 | ( | 1 | − | 25 100 | ) |
= | 1 4000 | X | − | 1 15 | ( | 1 | − | 25 100 | ) |
= | 1 4000 | X | − | 1 15 | × | 1 | + | 1 15 | × | 25 100 |
= | 1 4000 | X | − | 1 15 | + | 1 60 |
= | 1 4000 | X | − | 1 20 |
1 4400 | X | − | 7 88 | = | 1 4000 | X | − | 1 20 |
1 4400 | X | − | 1 4000 | X | = | - | 1 20 | + | 7 88 |
- | 1 44000 | X | = | - | 1 20 | + | 7 88 |
- | 1 44000 | X | = | 13 440 |
- | 13 440 | = | 1 44000 | X |
1 44000 | X | = | - | 13 440 |
X | = | - | 13 440 | ÷ | 1 44000 |
= | - | 13 440 | × | 44000 |
= | - | 13 | × | 100 |
X | = | - | 1300 |