x | ÷ | 3500 | − | 80 | − | 3500 | = | x | ÷ | 4500 | − | 330 | ÷ | 4500 |
方程左边 = | 1 3500 | x | − | 3580 |
1 3500 | x | − | 3580 | = | x | ÷ | 4500 | − | 330 | ÷ | 4500 |
方程右边 = | x | × | 1 4500 | − | 11 150 |
1 3500 | x | − | 3580 | = | 1 4500 | x | − | 11 150 |
1 3500 | x | − | 1 4500 | x | = | - | 11 150 | + | 3580 |
1 15750 | x | = | - | 11 150 | + | 3580 |
1 15750 | x | = | 536989 150 |
x | = | 536989 150 | ÷ | 1 15750 |
= | 536989 150 | × | 15750 |
= | 536989 | × | 105 |
x | = | 56383845 |