( | 2973 100 | − | 20 | ) | ÷ | ( | 30 | − | 2973 100 | ) | = | ( | a | − | 4991 5 | ) | ÷ | ( | 9957 10 | − | a | ) |
方程两边同时乘以: | ( | 30 | − | 2973 100 | ) | , | ( | 9957 10 | − | a | ) |
( | 2973 100 | − | 20 | ) | ( | 9957 10 | − | a | ) | = | ( | a | − | 4991 5 | ) | ( | 30 | − | 2973 100 | ) |
2973 100 | ( | 9957 10 | − | a | ) | − | 20 | ( | 9957 10 | − | a | ) | = | ( | a | − | 4991 5 | ) | ( | 30 | − | 2973 100 | ) |
2973 100 | ( | 9957 10 | − | a | ) | − | 20 | ( | 9957 10 | − | a | ) | = | a | ( | 30 | − | 2973 100 | ) | − | 4991 5 | ( | 30 | − | 2973 100 | ) |
2973 100 | × | 9957 10 | − | 2973 100 | a | − | 20 | ( | 9957 10 | − | a | ) | = | a | ( | 30 | − | 2973 100 | ) | − | 4991 5 | ( | 30 | − | 2973 100 | ) |
2973 100 | × | 9957 10 | − | 2973 100 | a | − | 20 | ( | 9957 10 | − | a | ) | = | a | × | 30 | − | a | × | 2973 100 | − | 4991 5 | ( | 30 | − | 2973 100 | ) |
29602161 1000 | − | 2973 100 | a | − | 20 | ( | 9957 10 | − | a | ) | = | a | × | 30 | − | a | × | 2973 100 | − | 4991 5 | ( | 30 | − | 2973 100 | ) |
29602161 1000 | − | 2973 100 | a | − | 20 | ( | 9957 10 | − | a | ) | = | 27 100 | a | − | 4991 5 | ( | 30 | − | 2973 100 | ) |
29602161 1000 | − | 2973 100 | a | − | 20 | × | 9957 10 | + | 20 | a | = | 27 100 | a | − | 4991 5 | ( | 30 | − | 2973 100 | ) |
29602161 1000 | − | 2973 100 | a | − | 20 | × | 9957 10 | + | 20 | a | = | 27 100 | a | − | 4991 5 | × | 30 | + | 4991 5 | × | 2973 100 |
29602161 1000 | − | 2973 100 | a | − | 19914 | + | 20 | a | = | 27 100 | a | − | 29946 | + | 14838243 500 |
9688161 1000 | − | 973 100 | a | = | 27 100 | a | − | 134757 500 |
- | 973 100 | a | − | 27 100 | a | = | - | 134757 500 | − | 9688161 1000 |
- | 10 | a | = | - | 134757 500 | − | 9688161 1000 |
- | 10 | a | = | - | 398307 40 |
398307 40 | = | 10 | a |
10 | a | = | 398307 40 |
a | = | 398307 40 | ÷ | 10 |
= | 398307 40 | × | 1 10 |
a | = | 398307 400 |
a | = | 995.7675 |