| 7600 | ÷ | ( | x | × | 31 25 | ) | + | 6700 | ÷ | x | + | 10000 | ÷ | x | = | 150 |
| 方程两边同时乘以: | ( | x | × | 31 25 | ) |
| 7600 | + | 6700 | ÷ | 1 | × | ( | 1 | × | 31 25 | ) | + | 10000 | ÷ | 1 | × | ( | 1 | × | 31 25 | ) | = | 150 | ( | x | × | 31 25 | ) |
| 7600 | + | 6700 | ÷ | 1 | × | 1 | × | 31 25 | + | 10000 | ÷ | 1 | × | ( | 1 | × | 31 25 | ) | = | 150 | ( | x | × | 31 25 | ) |
| 7600 | + | 6700 | ÷ | 1 | × | 1 | × | 31 25 | + | 10000 | ÷ | 1 | × | ( | 1 | × | 31 25 | ) | = | 150 | x | × | 31 25 |
| 7600 | + | 8308 | + | 10000 | ( | 1 | × | 31 25 | ) | = | 186 | x |
| 15908 | + | 10000 | ( | 1 | × | 31 25 | ) | = | 186 | x |
| 15908 | + | 10000 | × | 1 | × | 31 25 | = | 186 | x |
| 15908 | + | 12400 | = | 186 | x |
| 28308 | = | 186 | x |
| - | 186 | x | = | - | 28308 |
| 28308 | = | 186 | x |
| 186 | x | = | 28308 |
| x | = | 28308 | ÷ | 186 |
| = | 28308 | × | 1 186 |
| = | 4718 | × | 1 31 |
| x | = | 4718 31 |
| x | = | 152.193548 |