A | = | 13881600 | + | 10000000 | × | 1 200 | + | ( | A | − | 10000000 | ) | × | 1 500 | + | 56448 | + | ( | A | − | 13881600 | ) | × | 6 100 | + | A | × | 18 25 |
方程右边 = | 13881600 | + | 50000 | + | ( | A | − | 10000000 | ) | × | 1 500 | + | 56448 | + | ( | A | − | 13881600 | ) | × | 6 100 | + | A | × | 18 25 |
= | 13988048 | + | ( | A | − | 10000000 | ) | × | 1 500 | + | ( | A | − | 13881600 | ) | × | 6 100 | + | 18 25 | A |
A | = | 13988048 | + | ( | A | − | 10000000 | ) | × | 1 500 | + | ( | A | − | 13881600 | ) | × | 6 100 | + | 18 25 | A |
方程右边 = | 13988048 | + | A | × | 1 500 | − | 10000000 | × | 1 500 | + | ( | A | − | 13881600 | ) | × | 6 100 | + | 18 25 | A |
= | 13988048 | + | A | × | 1 500 | − | 20000 | + | ( | A | − | 13881600 | ) | × | 6 100 | + | 18 25 | A |
= | 13968048 | + | 361 500 | A | + | ( | A | − | 13881600 | ) | × | 6 100 |
= | 13968048 | + | 361 500 | A | + | A | × | 6 100 | − | 13881600 | × | 6 100 |
= | 13968048 | + | 361 500 | A | + | A | × | 6 100 | − | 832896 |
= | 13135152 | + | 391 500 | A |
A | = | 13135152 | + | 391 500 | A |
A | − | 391 500 | A | = | 13135152 |
109 500 | A | = | 13135152 |
A | = | 13135152 | ÷ | 109 500 |
= | 13135152 | × | 500 109 |
A | = | 6567576000 109 |
A | = | 60252990.825687997 |