| ( | 8 | x | + | ( | 3 2 | x | × | 3 | ) | ) | × | 22 | + | 2 | × | 8 | × | 11 | x | = | 7000 |
| 方程左边 = | ( | 8 | x | + | ( | 3 2 | x | × | 3 | ) | ) | × | 22 | + | 176 | x |
| ( | 8 | x | + | ( | 3 2 | x | × | 3 | ) | ) | × | 22 | + | 176 | x | = | 7000 |
| 方程左边 = | 8 | x | × | 22 | + | ( | 3 2 | x | × | 3 | ) | × | 22 | + | 176 | x |
| = | 176 | x | + | ( | 3 2 | x | × | 3 | ) | × | 22 | + | 176 | x |
| = | 352 | x | + | ( | 3 2 | x | × | 3 | ) | × | 22 |
| = | 352 | x | + | 3 2 | x | × | 3 | × | 22 |
| = | 352 | x | + | 99 | x |
| = | 451 | x |
| 451 | x | = | 7000 |
| x | = | 7000 | ÷ | 451 |
| = | 7000 | × | 1 451 |
| x | = | 7000 451 |
| x | = | 15.521064 |