1800 | − | 1009 2 | ÷ | ( | 13 100 | + | 99 1000000 | × | 900 | + | 99 1000000 | X | ) | = | X |
方程两边同时乘以: | ( | 13 100 | + | 99 1000000 | × | 900 | + | 99 1000000 | X | ) |
1800 | ( | 13 100 | + | 99 1000000 | × | 900 | + | 99 1000000 | X | ) | − | 1009 2 | = | X | ( | 13 100 | + | 99 1000000 | × | 900 | + | 99 1000000 | X | ) |
1800 | × | 13 100 | + | 1800 | × | 99 1000000 | × | 900 | + | 1800 | × | 99 1000000 | X | − | 1009 2 | = | X | ( | 13 100 | + | 99 1000000 | × | 900 | + | 99 1000000 | X | ) |
1800 | × | 13 100 | + | 1800 | × | 99 1000000 | × | 900 | + | 1800 | × | 99 1000000 | X | − | 1009 2 | = | X | × | 13 100 | + | X | × | 99 1000000 | × | 900 | + | X | × | 99 1000000 | X |
234 | + | 8019 50 | + | 891 5000 | X | − | 1009 2 | = | X | × | 13 100 | + | X | × | 891 10000 | + | X | × | 99 1000000 | X |
- | 2753 25 | + | 891 5000 | X | = | 2191 10000 | X | + | X | × | 99 1000000 | X |