4000000 | ( | 1 | − | 103 5000 | ) | − | ( | 4000000 | ÷ | 109 100 | × | 9 100 | − | x | ÷ | 103 100 | × | 3 100 | ) | × | 28 25 | = | x |
方程左边 = | 4000000 | × | 1 | − | 4000000 | × | 103 5000 | − | ( | 4000000 | ÷ | 109 100 | × | 9 100 | − | x | ÷ | 103 100 | × | 3 100 | ) | × | 28 25 |
= | 4000000 | − | 82400 | − | ( | 4000000 | ÷ | 109 100 | × | 9 100 | − | x | ÷ | 103 100 | × | 3 100 | ) | × | 28 25 |
= | 3917600 | − | ( | 4000000 | ÷ | 109 100 | × | 9 100 | − | x | ÷ | 103 100 | × | 3 100 | ) | × | 28 25 |
= | 3917600 | − | 4000000 | ÷ | 109 100 | × | 9 100 | × | 28 25 | + | x | ÷ | 103 100 | × | 3 100 | × | 28 25 |
= | 3917600 | − | 40320000 109 | + | x | × | 84 2575 |
= | 386698400 109 | + | 84 2575 | x |
386698400 109 | + | 84 2575 | x | = | x |
84 2575 | x | − | x | = | - | 386698400 109 |
- | 2491 2575 | x | = | - | 386698400 109 |
386698400 109 | = | 2491 2575 | x |
2491 2575 | x | = | 386698400 109 |
x | = | 386698400 109 | ÷ | 2491 2575 |
= | 386698400 109 | × | 2575 2491 |
x | = | 995748380000 271519 |