641 5 | + | ( | 21 | − | x | ) | × | 43 10 | = | ( | 50 | + | 556 5 | + | 13 2 | x | ) | ÷ | 3 2 |
方程左边 = | 641 5 | + | 21 | × | 43 10 | − | x | × | 43 10 |
= | 641 5 | + | 903 10 | − | x | × | 43 10 |
= | 437 2 | − | 43 10 | x |
437 2 | − | 43 10 | x | = | ( | 50 | + | 556 5 | + | 13 2 | x | ) | ÷ | 3 2 |
方程右边 = | 50 | × | 2 3 | + | 556 5 | × | 2 3 | + | 13 2 | x | × | 2 3 |
= | 100 3 | + | 1112 15 | + | 13 3 | x |
= | 1612 15 | + | 13 3 | x |
437 2 | − | 43 10 | x | = | 1612 15 | + | 13 3 | x |
- | 43 10 | x | − | 13 3 | x | = | 1612 15 | − | 437 2 |
- | 259 30 | x | = | 1612 15 | − | 437 2 |
- | 259 30 | x | = | - | 3331 30 |
3331 30 | = | 259 30 | x |
259 30 | x | = | 3331 30 |
x | = | 3331 30 | ÷ | 259 30 |
= | 3331 30 | × | 30 259 |
= | 3331 | × | 1 259 |
x | = | 3331 259 |
x | = | 12.861004 |