X | × | 4 5 | − | X | ÷ | 124465503 | × | 124465503 5 | = | 692152562 25 |
方程左边 = | X | × | 4 5 | − | X | × | 387743 1938715 |
= | 1163229 1938715 | X |
1163229 1938715 | X | = | 692152562 25 |
X | = | 692152562 25 | ÷ | 1163229 1938715 |
= | 692152562 25 | × | 1938715 1163229 |
= | 692152562 5 | × | 387743 1163229 |
X | = | 268377310847566 5816145 |