( | X | − | 400 | ) | × | 3 4 | − | 30 | ÷ | 1025 | = | ( | X | − | 460 | ) | × | 3 4 | ÷ | 1000 |
方程左边 = | ( | X | − | 400 | ) | × | 3 4 | − | 6 205 |
( | X | − | 400 | ) | × | 3 4 | − | 6 205 | = | ( | X | − | 460 | ) | × | 3 4 | ÷ | 1000 |
方程左边 = | X | × | 3 4 | − | 400 | × | 3 4 | − | 6 205 |
= | X | × | 3 4 | − | 300 | − | 6 205 |
= | 3 4 | X | − | 61506 205 |
3 4 | X | − | 61506 205 | = | ( | X | − | 460 | ) | × | 3 4 | ÷ | 1000 |
方程右边 = | ( | X | − | 460 | ) | × | 3 4000 |
3 4 | X | − | 61506 205 | = | ( | X | − | 460 | ) | × | 3 4000 |
方程右边 = | X | × | 3 4000 | − | 460 | × | 3 4000 |
= | X | × | 3 4000 | − | 69 200 |
3 4 | X | − | 61506 205 | = | 3 4000 | X | − | 69 200 |
3 4 | X | − | 3 4000 | X | = | - | 69 200 | + | 61506 205 |
2997 4000 | X | = | - | 69 200 | + | 61506 205 |
2997 4000 | X | = | 2457411 8200 |
X | = | 2457411 8200 | ÷ | 2997 4000 |
= | 2457411 8200 | × | 4000 2997 |
= | 819137 41 | × | 20 999 |
X | = | 16382740 40959 |
X | = | 399.979003 |