x | − | ( | x | − | 6500 | − | 3655 | ) | × | 1 10 | − | 3655 | = | 15394 |
方程左边 = | x | − | x | × | 1 10 | + | 6500 | × | 1 10 | + | 3655 | × | 1 10 | − | 3655 |
= | x | − | x | × | 1 10 | + | 650 | + | 731 2 | − | 3655 |
= | 9 10 | x | − | 5279 2 |
9 10 | x | − | 5279 2 | = | 15394 |
9 10 | x | = | 15394 | + | 5279 2 |
9 10 | x | = | 36067 2 |
x | = | 36067 2 | ÷ | 9 10 |
= | 36067 2 | × | 10 9 |
= | 36067 | × | 5 9 |
x | = | 180335 9 |
x | = | 20037.222222 |