| ( | 55071 50 | − | 1067 | ) | ÷ | ( | 55071 50 | − | 101929 100 | ) | = | ( | 4 100 | − | x | ) | ÷ | ( | 4 100 | − | 5 100 | ) |
| 方程两边同时乘以: | ( | 55071 50 | − | 101929 100 | ) | , | ( | 4 100 | − | 5 100 | ) |
| ( | 55071 50 | − | 1067 | ) | ( | 4 100 | − | 5 100 | ) | = | ( | 4 100 | − | x | ) | ( | 55071 50 | − | 101929 100 | ) |
55071 50 | ( | 4 100 | − | 5 100 | ) | − | 1067 | ( | 4 100 | − | 5 100 | ) | = | ( | 4 100 | − | x | ) | ( | 55071 50 | − | 101929 100 | ) |
55071 50 | ( | 4 100 | − | 5 100 | ) | − | 1067 | ( | 4 100 | − | 5 100 | ) | = | 4 100 | ( | 55071 50 | − | 101929 100 | ) | − | x | ( | 55071 50 | − | 101929 100 | ) |
55071 50 | × | 4 100 | − | 55071 50 | × | 5 100 | − | 1067 | ( | 4 100 | − | 5 100 | ) | = | 4 100 | ( | 55071 50 | − | 101929 100 | ) | − | x | ( | 55071 50 | − | 101929 100 | ) |
55071 50 | × | 4 100 | − | 55071 50 | × | 5 100 | − | 1067 | ( | 4 100 | − | 5 100 | ) | = | 4 100 | × | 55071 50 | − | 4 100 | × | 101929 100 | − | x | ( | 55071 50 | − | 101929 100 | ) |
55071 1250 | − | 55071 1000 | − | 1067 | ( | 4 100 | − | 5 100 | ) | = | 55071 1250 | − | 101929 2500 | − | x | ( | 55071 50 | − | 101929 100 | ) |
| - | 55071 5000 | − | 1067 | ( | 4 100 | − | 5 100 | ) | = | 8213 2500 | − | x | ( | 55071 50 | − | 101929 100 | ) |
| - | 55071 5000 | − | 1067 | × | 4 100 | + | 1067 | × | 5 100 | = | 8213 2500 | − | x | ( | 55071 50 | − | 101929 100 | ) |
| - | 55071 5000 | − | 1067 | × | 4 100 | + | 1067 | × | 5 100 | = | 8213 2500 | − | x | × | 55071 50 | + | x | × | 101929 100 |
| - | 55071 5000 | − | 1067 25 | + | 1067 20 | = | 8213 2500 | − | x | × | 55071 50 | + | x | × | 101929 100 |
| - | 1721 5000 | = | 8213 2500 | − | 8213 100 | x |
8213 100 | x | = | 8213 2500 | + | 1721 5000 |
8213 100 | x | = | 18147 5000 |
| x | = | 18147 5000 | ÷ | 8213 100 |
| = | 18147 5000 | × | 100 8213 |
| = | 18147 50 | × | 1 8213 |
| x | = | 18147 410650 |
| x | = | 0.044191 |