| ( | ( | x | − | 888 | ) | + | 1 | ) | ÷ | 4 | = | x | − | 877 | − | ( | 5 | ( | x | − | 888 | ) | − | 1 | ) | ÷ | 12 |
| 方程左边 = | ( | x | − | 888 | ) | × | 1 4 | + | 1 | × | 1 4 |
| = | ( | x | − | 888 | ) | × | 1 4 | + | 1 4 |
| = | x | × | 1 4 | − | 888 | × | 1 4 | + | 1 4 |
| = | x | × | 1 4 | − | 222 | + | 1 4 |
| = | 1 4 | x | − | 887 4 |
1 4 | x | − | 887 4 | = | x | − | 877 | − | ( | 5 | ( | x | − | 888 | ) | − | 1 | ) | ÷ | 12 |
| 方程右边 = | x | − | 877 | − | 5 | ( | x | − | 888 | ) | × | 1 12 | + | 1 | × | 1 12 |
| = | x | − | 877 | − | 5 12 | ( | x | − | 888 | ) | + | 1 12 |
| = | x | − | 10523 12 | − | 5 12 | ( | x | − | 888 | ) |
| = | x | − | 10523 12 | − | 5 12 | x | + | 5 12 | × | 888 |
| = | x | − | 10523 12 | − | 5 12 | x | + | 370 |
| = | 7 12 | x | − | 6083 12 |
1 4 | x | − | 887 4 | = | 7 12 | x | − | 6083 12 |
1 4 | x | − | 7 12 | x | = | - | 6083 12 | + | 887 4 |
| - | 1 3 | x | = | - | 6083 12 | + | 887 4 |
| - | 1 3 | x | = | - | 1711 6 |
1711 6 | = | 1 3 | x |
1 3 | x | = | 1711 6 |
| x | = | 1711 6 | ÷ | 1 3 |
| = | 1711 6 | × | 3 |
| = | 1711 2 | × | 1 |
| x | = | 1711 2 |
| x | = | 855.5 |