7 4 | ( | 23 10 | − | x | ) | × | 3 4 | × | 63 20 | = | 11 4 | ( | 17 20 | − | 23 10 | ) | × | 1 4 | ( | 23 10 | + | x | ) |
| 方程左边 = | 1323 320 | ( | 23 10 | − | x | ) |
1323 320 | ( | 23 10 | − | x | ) | = | 11 4 | ( | 17 20 | − | 23 10 | ) | × | 1 4 | ( | 23 10 | + | x | ) |
| 方程左边 = | 1323 320 | × | 23 10 | − | 1323 320 | x |
| = | 30429 3200 | − | 1323 320 | x |
30429 3200 | − | 1323 320 | x | = | 11 4 | ( | 17 20 | − | 23 10 | ) | × | 1 4 | ( | 23 10 | + | x | ) |
| 方程右边 = | 11 16 | ( | 17 20 | − | 23 10 | ) | ( | 23 10 | + | x | ) |
30429 3200 | − | 1323 320 | x | = | 11 16 | ( | 17 20 | − | 23 10 | ) | ( | 23 10 | + | x | ) |
| 方程右边 = | 11 16 | × | 17 20 | ( | 23 10 | + | x | ) | − | 11 16 | × | 23 10 | ( | 23 10 | + | x | ) |
| = | 187 320 | ( | 23 10 | + | x | ) | − | 253 160 | ( | 23 10 | + | x | ) |
| = | 187 320 | × | 23 10 | + | 187 320 | x | − | 253 160 | ( | 23 10 | + | x | ) |
| = | 4301 3200 | + | 187 320 | x | − | 253 160 | ( | 23 10 | + | x | ) |
| = | 4301 3200 | + | 187 320 | x | − | 253 160 | × | 23 10 | − | 253 160 | x |
| = | 4301 3200 | + | 187 320 | x | − | 5819 1600 | − | 253 160 | x |
| = | - | 7337 3200 | − | 319 320 | x |
30429 3200 | − | 1323 320 | x | = | - | 7337 3200 | − | 319 320 | x |
| - | 1323 320 | x | + | 319 320 | x | = | - | 7337 3200 | − | 30429 3200 |
| - | 251 80 | x | = | - | 7337 3200 | − | 30429 3200 |
| - | 251 80 | x | = | - | 18883 1600 |
18883 1600 | = | 251 80 | x |
251 80 | x | = | 18883 1600 |
| x | = | 18883 1600 | ÷ | 251 80 |
| = | 18883 1600 | × | 80 251 |
| = | 18883 20 | × | 1 251 |
| x | = | 18883 5020 |
| x | = | 3.761554 |