x | × | 3999 4000 | − | 121577 1000 | × | 4001 4000 | = | 2 | ÷ | 10 |
方程左边 = | x | × | 3999 4000 | − | 486429577 4000000 |
3999 4000 | x | − | 486429577 4000000 | = | 2 | ÷ | 10 |
方程右边 = | 1 5 |
3999 4000 | x | − | 486429577 4000000 | = | 1 5 |
3999 4000 | x | = | 1 5 | + | 486429577 4000000 |
3999 4000 | x | = | 487229577 4000000 |
x | = | 487229577 4000000 | ÷ | 3999 4000 |
= | 487229577 4000000 | × | 4000 3999 |
= | 162409859 1000 | × | 1 1333 |
x | = | 162409859 1333000 |
x | = | 121.837854 |