10787 10000 | x | ÷ | ( | 40 | + | 1000 | x | ) | = | 1 10000 |
| 方程两边同时乘以: | ( | 40 | + | 1000 | x | ) |
10787 10000 | x | = | 1 10000 | ( | 40 | + | 1000 | x | ) |
10787 10000 | x | = | 1 10000 | × | 40 | + | 1 10000 | × | 1000 | x |
10787 10000 | x | = | 1 250 | + | 1 10 | x |
10787 10000 | x | − | 1 10 | x | = | 1 250 |
9787 10000 | x | = | 1 250 |
| x | = | 1 250 | ÷ | 9787 10000 |
| = | 1 250 | × | 10000 9787 |
| = | 1 | × | 40 9787 |
| x | = | 40 9787 |
| x | = | 0.004087 |