( | 150 | + | A | ) | × | 159 100 | × | 2 | = | ( | 355 | + | A | ) | × | 203 100 |
方程左边 = | ( | 150 | + | A | ) | × | 159 50 |
( | 150 | + | A | ) | × | 159 50 | = | ( | 355 | + | A | ) | × | 203 100 |
方程左边 = | 150 | × | 159 50 | + | A | × | 159 50 |
= | 477 | + | A | × | 159 50 |
477 | + | 159 50 | A | = | ( | 355 | + | A | ) | × | 203 100 |
方程右边 = | 355 | × | 203 100 | + | A | × | 203 100 |
= | 14413 20 | + | A | × | 203 100 |
477 | + | 159 50 | A | = | 14413 20 | + | 203 100 | A |
159 50 | A | − | 203 100 | A | = | 14413 20 | − | 477 |
23 20 | A | = | 14413 20 | − | 477 |
23 20 | A | = | 4873 20 |
A | = | 4873 20 | ÷ | 23 20 |
= | 4873 20 | × | 20 23 |
= | 4873 | × | 1 23 |
A | = | 4873 23 |
A | = | 211.869565 |