x | − | ( | x | ÷ | 101 100 | × | 1 100 | ) | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 4 5 | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | ) | × | 1 5 | ) | = | 4000 |
方程左边 = | x | − | x | ÷ | 101 100 | × | 1 100 | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 4 5 | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | ) | × | 1 5 | ) |
= | x | − | x | × | 1 101 | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 4 5 | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | ) | × | 1 5 | ) |
= | 100 101 | x | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 4 5 | − | ( | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | ) | × | 1 5 | ) |
= | 100 101 | x | − | x | ÷ | 101 100 | × | 1 100 | × | 4 5 | + | ( | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | ) | × | 1 5 |
= | 100 101 | x | − | x | × | 4 505 | + | ( | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | ) | × | 1 5 |
= | 496 505 | x | + | ( | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | ) | × | 1 5 |
= | 496 505 | x | + | x | ÷ | 101 100 | × | 1 100 | × | 7 100 | ÷ | 2 | × | 1 5 |
= | 496 505 | x | + | x | × | 7 101000 |
= | 99207 101000 | x |
99207 101000 | x | = | 4000 |
x | = | 4000 | ÷ | 99207 101000 |
= | 4000 | × | 101000 99207 |
x | = | 404000000 99207 |
x | = | 4072.293286 |