| 3000 | ÷ | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | × | ( | 1167 10000 | − | 79 2500 | ) | = | ( | 3000 | ÷ | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 500 | ÷ | ( | 1 | + | y | ) | ) | × | 8 100 |
| 方程两边同时乘以: | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
| 3000 | ( | 1167 10000 | − | 79 2500 | ) | = | ( | 3000 | ÷ | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 500 | ÷ | ( | 1 | + | y | ) | ) | × | 8 100 | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
| 3000 | × | 1167 10000 | − | 3000 | × | 79 2500 | = | ( | 3000 | ÷ | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 500 | ÷ | ( | 1 | + | y | ) | ) | × | 8 100 | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
| 3000 | × | 1167 10000 | − | 3000 | × | 79 2500 | = | 3000 | ÷ | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | × | 8 100 | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 500 | ÷ | ( | 1 | + | y | ) | × | 8 100 | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
3501 10 | − | 474 5 | = | 240 | ÷ | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 6250 | ÷ | ( | 1 | + | y | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
2553 10 | = | 240 | ÷ | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 6250 | ÷ | ( | 1 | + | y | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
| 方程两边同时乘以: | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
2553 10 | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | = | 240 | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 6250 | ÷ | ( | 1 | + | y | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
2553 10 | × | 1 | + | 2553 10 | × | 79 2500 | + | 2553 10 | × | 1167 10000 | − | 2553 10 | × | 79 2500 | = | 240 | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | + | 9 6250 | ÷ | ( | 1 | + | y | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
2553 10 | × | 1 | + | 2553 10 | × | 79 2500 | + | 2553 10 | × | 1167 10000 | − | 2553 10 | × | 79 2500 | = | 240 | × | 1 | + | 240 | × | 79 2500 | + | 240 | × | 1167 10000 | − | 240 | × | 79 2500 | + | 9 6250 | ÷ | ( | 1 | + | y | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |
2553 10 | + | 201687 25000 | + | 2979351 100000 | − | 201687 25000 | = | 240 | + | 948 125 | + | 3501 125 | − | 948 125 | + | 9 6250 | ÷ | ( | 1 | + | y | ) | × | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) | ( | 1 | + | 79 2500 | + | 1167 10000 | − | 79 2500 | ) |