199 200 | = | 217 100 | x | ÷ | ( | 1 | + | 117 100 | x | ) |
| 方程两边同时乘以: | ( | 1 | + | 117 100 | x | ) |
199 200 | ( | 1 | + | 117 100 | x | ) | = | 217 100 | x |
199 200 | × | 1 | + | 199 200 | × | 117 100 | x | = | 217 100 | x |
199 200 | + | 23283 20000 | x | = | 217 100 | x |
23283 20000 | x | − | 217 100 | x | = | - | 199 200 |
| - | 20117 20000 | x | = | - | 199 200 |
199 200 | = | 20117 20000 | x |
20117 20000 | x | = | 199 200 |
| x | = | 199 200 | ÷ | 20117 20000 |
| = | 199 200 | × | 20000 20117 |
| = | 199 | × | 100 20117 |
| x | = | 19900 20117 |
| x | = | 0.989213 |