| ( | 301 | + | 311 | + | 454 | + | x | ) | ( | 1 | + | 233 500 | × | 3 | ) | = | 3000 |
| 方程左边 = | 301 | ( | 1 | + | 233 500 | × | 3 | ) | + | 311 | ( | 1 | + | 233 500 | × | 3 | ) | + | 454 | ( | 1 | + | 233 500 | × | 3 | ) | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 301 | × | 1 | + | 301 | × | 233 500 | × | 3 | + | 311 | ( | 1 | + | 233 500 | × | 3 | ) | + | 454 | ( | 1 | + | 233 500 | × | 3 | ) | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 301 | + | 210399 500 | + | 311 | ( | 1 | + | 233 500 | × | 3 | ) | + | 454 | ( | 1 | + | 233 500 | × | 3 | ) | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 360899 500 | + | 311 | ( | 1 | + | 233 500 | × | 3 | ) | + | 454 | ( | 1 | + | 233 500 | × | 3 | ) | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 360899 500 | + | 311 | × | 1 | + | 311 | × | 233 500 | × | 3 | + | 454 | ( | 1 | + | 233 500 | × | 3 | ) | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 360899 500 | + | 311 | + | 217389 500 | + | 454 | ( | 1 | + | 233 500 | × | 3 | ) | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 183447 125 | + | 454 | ( | 1 | + | 233 500 | × | 3 | ) | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 183447 125 | + | 454 | × | 1 | + | 454 | × | 233 500 | × | 3 | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 183447 125 | + | 454 | + | 158673 250 | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 639067 250 | + | x | ( | 1 | + | 233 500 | × | 3 | ) |
| = | 639067 250 | + | x | × | 1 | + | x | × | 233 500 | × | 3 |
| = | 639067 250 | + | x | × | 1 | + | x | × | 699 500 |
| = | 639067 250 | + | 1199 500 | x |
639067 250 | + | 1199 500 | x | = | 3000 |
1199 500 | x | = | 3000 | − | 639067 250 |
1199 500 | x | = | 110933 250 |
| x | = | 110933 250 | ÷ | 1199 500 |
| = | 110933 250 | × | 500 1199 |
| = | 110933 | × | 2 1199 |
| x | = | 221866 1199 |
| x | = | 185.042535 |