X | ( | 1 10 | + | 2 | X | ) | ÷ | ( | 1 10 | − | X | ) | = | 91 10 | × | 11 10 | × | 1 9223372036854775807 |
方程两边同时乘以: | ( | 1 10 | − | X | ) |
X | ( | 1 10 | + | 2 | X | ) | = | 91 10 | × | 11 10 | × | 1 9223372036854775807 | ( | 1 10 | − | X | ) |
X | × | 1 10 | + | X | × | 2 | X | = | 91 10 | × | 11 10 | × | 1 9223372036854775807 | ( | 1 10 | − | X | ) |
X | × | 1 10 | + | X | × | 2 | X | = | 91 10 | × | 11 10 | × | 1 9223372036854775807 | × | 1 10 | − | 91 10 | × | 11 10 | × | 1 9223372036854775807 | X |
X | × | 1 10 | + | X | × | 2 | X | = | - | 1001 1000 | − | - | 1001 100 | X |