x | − | ( | x | × | 13 100 | − | 3 50 | ) | × | 12 100 | = | 1 |
方程左边 = | x | − | x | × | 13 100 | × | 12 100 | + | 3 50 | × | 12 100 |
= | x | − | x | × | 39 2500 | + | 9 1250 |
= | 2461 2500 | x | + | 9 1250 |
2461 2500 | x | + | 9 1250 | = | 1 |
2461 2500 | x | = | 1 | − | 9 1250 |
2461 2500 | x | = | 1241 1250 |
x | = | 1241 1250 | ÷ | 2461 2500 |
= | 1241 1250 | × | 2500 2461 |
= | 1241 | × | 2 2461 |
x | = | 2482 2461 |
x | = | 1.008533 |