1307 100 | x | = | ( | 7 2 | + | x | ) | × | 399 50 |
方程右边 = | 7 2 | × | 399 50 | + | x | × | 399 50 |
= | 2793 100 | + | x | × | 399 50 |
1307 100 | x | = | 2793 100 | + | 399 50 | x |
1307 100 | x | − | 399 50 | x | = | 2793 100 |
509 100 | x | = | 2793 100 |
x | = | 2793 100 | ÷ | 509 100 |
= | 2793 100 | × | 100 509 |
= | 2793 | × | 1 509 |
x | = | 2793 509 |
x | = | 5.48723 |