123 50 | x | ÷ | ( | 1 | + | 73 50 | x | ) | = | 3131 5000 |
| 方程两边同时乘以: | ( | 1 | + | 73 50 | x | ) |
123 50 | x | = | 3131 5000 | ( | 1 | + | 73 50 | x | ) |
123 50 | x | = | 3131 5000 | × | 1 | + | 3131 5000 | × | 73 50 | x |
123 50 | x | = | 3131 5000 | + | 228563 250000 | x |
123 50 | x | − | 228563 250000 | x | = | 3131 5000 |
386437 250000 | x | = | 3131 5000 |
| x | = | 3131 5000 | ÷ | 386437 250000 |
| = | 3131 5000 | × | 250000 386437 |
| = | 3131 | × | 50 386437 |
| x | = | 156550 386437 |
| x | = | 0.405111 |