10 | − | A | = | ( | 125 | − | A | ) | × | 1717 5000 | ÷ | ( | 1 | + | 5 100 | ) |
方程两边同时乘以: | ( | 1 | + | 5 100 | ) |
10 | ( | 1 | + | 5 100 | ) | − | A | ( | 1 | + | 5 100 | ) | = | ( | 125 | − | A | ) | × | 1717 5000 |
10 | × | 1 | + | 10 | × | 5 100 | − | A | ( | 1 | + | 5 100 | ) | = | ( | 125 | − | A | ) | × | 1717 5000 |
10 | × | 1 | + | 10 | × | 5 100 | − | A | ( | 1 | + | 5 100 | ) | = | 125 | × | 1717 5000 | − | A | × | 1717 5000 |
10 | + | 1 2 | − | A | ( | 1 | + | 5 100 | ) | = | 1717 40 | − | A | × | 1717 5000 |
21 2 | − | A | ( | 1 | + | 5 100 | ) | = | 1717 40 | − | 1717 5000 | A |
21 2 | − | A | × | 1 | − | A | × | 5 100 | = | 1717 40 | − | 1717 5000 | A |
21 2 | − | 21 20 | A | = | 1717 40 | − | 1717 5000 | A |
- | 21 20 | A | + | 1717 5000 | A | = | 1717 40 | − | 21 2 |
- | 3533 5000 | A | = | 1717 40 | − | 21 2 |
- | 3533 5000 | A | = | 1297 40 |
- | 1297 40 | = | 3533 5000 | A |
3533 5000 | A | = | - | 1297 40 |
A | = | - | 1297 40 | ÷ | 3533 5000 |
= | - | 1297 40 | × | 5000 3533 |
= | - | 1297 | × | 125 3533 |
A | = | - | 162125 3533 |
A | = | - 45.888763 |