X | ÷ | 87 | − | ( | 90 | − | X | ) | ÷ | 1000 | − | 2 | ÷ | 447 10 | − | 3 | ÷ | 45 | = | 119 500 |
方程左边 = | X | × | 1 87 | − | ( | 90 | − | X | ) | × | 1 1000 | − | 20 447 | − | 1 15 |
= | 1 87 | X | − | ( | 90 | − | X | ) | × | 1 1000 | − | 83 745 |
1 87 | X | − | ( | 90 | − | X | ) | × | 1 1000 | − | 83 745 | = | 119 500 |
方程左边 = | 1 87 | X | − | 90 | × | 1 1000 | + | X | × | 1 1000 | − | 83 745 |
= | 1 87 | X | − | 9 100 | + | X | × | 1 1000 | − | 83 745 |
= | 1087 87000 | X | − | 3001 14900 |
1087 87000 | X | − | 3001 14900 | = | 119 500 |
1087 87000 | X | = | 119 500 | + | 3001 14900 |
1087 87000 | X | = | 8184 18625 |
X | = | 8184 18625 | ÷ | 1087 87000 |
= | 8184 18625 | × | 87000 1087 |
= | 8184 149 | × | 696 1087 |
X | = | 5696064 161963 |
X | = | 35.168921 |