( | 2973 100 | − | 20 | ) | ÷ | ( | 30 | − | 2973 100 | ) | = | ( | a | − | 21 20 | ) | ÷ | ( | 8007 10000 | − | a | ) |
方程两边同时乘以: | ( | 30 | − | 2973 100 | ) | , | ( | 8007 10000 | − | a | ) |
( | 2973 100 | − | 20 | ) | ( | 8007 10000 | − | a | ) | = | ( | a | − | 21 20 | ) | ( | 30 | − | 2973 100 | ) |
2973 100 | ( | 8007 10000 | − | a | ) | − | 20 | ( | 8007 10000 | − | a | ) | = | ( | a | − | 21 20 | ) | ( | 30 | − | 2973 100 | ) |
2973 100 | ( | 8007 10000 | − | a | ) | − | 20 | ( | 8007 10000 | − | a | ) | = | a | ( | 30 | − | 2973 100 | ) | − | 21 20 | ( | 30 | − | 2973 100 | ) |
2973 100 | × | 8007 10000 | − | 2973 100 | a | − | 20 | ( | 8007 10000 | − | a | ) | = | a | ( | 30 | − | 2973 100 | ) | − | 21 20 | ( | 30 | − | 2973 100 | ) |
2973 100 | × | 8007 10000 | − | 2973 100 | a | − | 20 | ( | 8007 10000 | − | a | ) | = | a | × | 30 | − | a | × | 2973 100 | − | 21 20 | ( | 30 | − | 2973 100 | ) |
23804811 1000000 | − | 2973 100 | a | − | 20 | ( | 8007 10000 | − | a | ) | = | a | × | 30 | − | a | × | 2973 100 | − | 21 20 | ( | 30 | − | 2973 100 | ) |
23804811 1000000 | − | 2973 100 | a | − | 20 | ( | 8007 10000 | − | a | ) | = | 27 100 | a | − | 21 20 | ( | 30 | − | 2973 100 | ) |
23804811 1000000 | − | 2973 100 | a | − | 20 | × | 8007 10000 | + | 20 | a | = | 27 100 | a | − | 21 20 | ( | 30 | − | 2973 100 | ) |
23804811 1000000 | − | 2973 100 | a | − | 20 | × | 8007 10000 | + | 20 | a | = | 27 100 | a | − | 21 20 | × | 30 | + | 21 20 | × | 2973 100 |
23804811 1000000 | − | 2973 100 | a | − | 8007 500 | + | 20 | a | = | 27 100 | a | − | 63 2 | + | 62433 2000 |
7790811 1000000 | − | 973 100 | a | = | 27 100 | a | − | 567 2000 |
- | 973 100 | a | − | 27 100 | a | = | - | 567 2000 | − | 7790811 1000000 |
- | 10 | a | = | - | 567 2000 | − | 7790811 1000000 |