| 176 | = | 6667 100 | ÷ | ( | 1 | + | r | ) | + | 6667 100 | ÷ | ( | 1 | + | r | ) | ÷ | ( | 1 | + | r | ) | + | 3333 50 | ÷ | ( | 1 | + | r | ) | ÷ | ( | 1 | + | r | ) | ÷ | ( | 1 | + | r | ) |
| 方程两边同时乘以: | ( | 1 | + | r | ) |
| 176 | ( | 1 | + | r | ) | = | 6667 100 | + | 6667 100 | ÷ | ( | 1 | + | r | ) | + | 3333 50 | ÷ | ( | 1 | + | r | ) | ÷ | ( | 1 | + | r | ) |
| 176 | × | 1 | + | 176 | r | = | 6667 100 | + | 6667 100 | ÷ | ( | 1 | + | r | ) | + | 3333 50 | ÷ | ( | 1 | + | r | ) | ÷ | ( | 1 | + | r | ) |
| 176 | + | 176 | r | = | 6667 100 | + | 6667 100 | ÷ | ( | 1 | + | r | ) | + | 3333 50 | ÷ | ( | 1 | + | r | ) | ÷ | ( | 1 | + | r | ) |
| 方程两边同时乘以: | ( | 1 | + | r | ) |
| 176 | ( | 1 | + | r | ) | + | 176 | r | ( | 1 | + | r | ) | = | 6667 100 | ( | 1 | + | r | ) | + | 6667 100 | + | 3333 50 | ÷ | ( | 1 | + | r | ) |
| 176 | × | 1 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | = | 6667 100 | ( | 1 | + | r | ) | + | 6667 100 | + | 3333 50 | ÷ | ( | 1 | + | r | ) |
| 176 | × | 1 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | = | 6667 100 | × | 1 | + | 6667 100 | r | + | 6667 100 | + | 3333 50 | ÷ | ( | 1 | + | r | ) |
| 176 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | = | 6667 100 | + | 6667 100 | r | + | 6667 100 | + | 3333 50 | ÷ | ( | 1 | + | r | ) |
| 176 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | = | 6667 50 | + | 6667 100 | r | + | 3333 50 | ÷ | ( | 1 | + | r | ) |
| 方程两边同时乘以: | ( | 1 | + | r | ) |
| 176 | ( | 1 | + | r | ) | + | 176 | r | ( | 1 | + | r | ) | + | 176 | r | ( | 1 | + | r | ) | ( | 1 | + | r | ) | = | 6667 50 | ( | 1 | + | r | ) | + | 6667 100 | r | ( | 1 | + | r | ) | + | 3333 50 |
| 176 | × | 1 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | + | 176 | r | ( | 1 | + | r | ) | ( | 1 | + | r | ) | = | 6667 50 | ( | 1 | + | r | ) | + | 6667 100 | r | ( | 1 | + | r | ) | + | 3333 50 |
| 176 | × | 1 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | + | 176 | r | ( | 1 | + | r | ) | ( | 1 | + | r | ) | = | 6667 50 | × | 1 | + | 6667 50 | r | + | 6667 100 | r | ( | 1 | + | r | ) | + | 3333 50 |
| 176 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | + | 176 | r | ( | 1 | + | r | ) | ( | 1 | + | r | ) | = | 6667 50 | + | 6667 50 | r | + | 6667 100 | r | ( | 1 | + | r | ) | + | 3333 50 |
| 176 | + | 176 | r | + | 176 | r | ( | 1 | + | r | ) | + | 176 | r | ( | 1 | + | r | ) | ( | 1 | + | r | ) | = | 200 | + | 6667 50 | r | + | 6667 100 | r | ( | 1 | + | r | ) |
| 176 | + | 176 | r | + | 176 | r | × | 1 | + | 176 | r | r | + | 176 | r | ( | 1 | + | r | ) | = | 200 | + | 6667 50 | r | + | 6667 100 | r | ( | 1 | + | r | ) |
| 176 | + | 176 | r | + | 176 | r | × | 1 | + | 176 | r | r | + | 176 | r | ( | 1 | + | r | ) | = | 200 | + | 6667 50 | r | + | 6667 100 | r | × | 1 | + | 6667 100 | r | r |
| 176 | + | 176 | r | + | 176 | r | + | 176 | r | r | + | 176 | r | ( | 1 | + | r | ) | ( | 1 | + | r | ) | = | 200 | + | 6667 50 | r | + | 6667 100 | r | + | 6667 100 | r | r |
| 176 | + | 352 | r | + | 176 | r | r | + | 176 | r | ( | 1 | + | r | ) | ( | 1 | + | r | ) | = | 200 | + | 20001 100 | r | + | 6667 100 | r | r |
| 176 | + | 352 | r | + | 176 | r | r | + | 176 | r | × | 1 | ( | 1 | + | r | ) | + | 176 | r | = | 200 | + | 20001 100 | r | + | 6667 100 | r | r |
| 176 | + | 352 | r | + | 176 | r | r | + | 176 | r | ( | 1 | + | r | ) | + | 176 | r | r | = | 200 | + | 20001 100 | r | + | 6667 100 | r | r |
| 176 | + | 352 | r | + | 176 | r | r | + | 176 | r | × | 1 | + | 176 | r | r | = | 200 | + | 20001 100 | r | + | 6667 100 | r | r |
| 176 | + | 352 | r | + | 176 | r | r | + | 176 | r | + | 176 | r | r | + | 176 | = | 200 | + | 20001 100 | r | + | 6667 100 | r | r |
| 176 | + | 528 | r | + | 176 | r | r | + | 176 | r | r | + | 176 | r | r | = | 200 | + | 20001 100 | r | + | 6667 100 | r | r |
| 176 | + | 528 | r | + | 176 | r | r | + | 176 | r | r | + | 176 | r | r | = | 200 | + | 20001 100 | r | + | 6667 100 | r | r |