507 1000 | ( | 50 | + | 34 5 | x | ) | − | 493 1000 | ( | 40 | + | 17 2 | x | ) | = | 0 |
方程左边 = | 507 1000 | × | 50 | + | 507 1000 | × | 34 5 | x | − | 493 1000 | ( | 40 | + | 17 2 | x | ) |
= | 507 20 | + | 8619 2500 | x | − | 493 1000 | ( | 40 | + | 17 2 | x | ) |
= | 507 20 | + | 8619 2500 | x | − | 493 1000 | × | 40 | − | 493 1000 | × | 17 2 | x |
= | 507 20 | + | 8619 2500 | x | − | 493 25 | − | 8381 2000 | x |
= | 563 100 | − | 7429 10000 | x |
563 100 | − | 7429 10000 | x | = | 0 |
- | 7429 10000 | x | = | 0 | − | 563 100 |
- | 7429 10000 | x | = | - | 563 100 |
563 100 | = | 7429 10000 | x |
7429 10000 | x | = | 563 100 |
x | = | 563 100 | ÷ | 7429 10000 |
= | 563 100 | × | 10000 7429 |
= | 563 | × | 100 7429 |
x | = | 56300 7429 |
x | = | 7.578409 |