75 | × | 39 5 | + | 1307 100 | x | = | ( | 75 | + | x | ) | × | 399 50 |
方程左边 = | 585 | + | 1307 100 | x |
585 | + | 1307 100 | x | = | ( | 75 | + | x | ) | × | 399 50 |
方程右边 = | 75 | × | 399 50 | + | x | × | 399 50 |
= | 1197 2 | + | x | × | 399 50 |
585 | + | 1307 100 | x | = | 1197 2 | + | 399 50 | x |
1307 100 | x | − | 399 50 | x | = | 1197 2 | − | 585 |
509 100 | x | = | 1197 2 | − | 585 |
509 100 | x | = | 27 2 |
x | = | 27 2 | ÷ | 509 100 |
= | 27 2 | × | 100 509 |
= | 27 | × | 50 509 |
x | = | 1350 509 |
x | = | 2.652259 |