433 | + | ( | 433 | − | 100 | ) | ( | ( | x | − | 1 | ) | × | 1 200 | ) | = | 75601 100 |
方程左边 = | 433 | + | 433 | ( | ( | x | − | 1 | ) | × | 1 200 | ) | − | 100 | ( | ( | x | − | 1 | ) | × | 1 200 | ) |
= | 433 | + | 433 | ( | x | − | 1 | ) | × | 1 200 | − | 100 | ( | ( | x | − | 1 | ) | × | 1 200 | ) |
= | 433 | + | 433 200 | ( | x | − | 1 | ) | − | 100 | ( | ( | x | − | 1 | ) | × | 1 200 | ) |
= | 433 | + | 433 200 | x | − | 433 200 | × | 1 | − | 100 | ( | ( | x | − | 1 | ) | × | 1 200 | ) |
= | 433 | + | 433 200 | x | − | 433 200 | − | 100 | ( | ( | x | − | 1 | ) | × | 1 200 | ) |
= | 86167 200 | + | 433 200 | x | − | 100 | ( | ( | x | − | 1 | ) | × | 1 200 | ) |
= | 86167 200 | + | 433 200 | x | − | 100 | ( | x | − | 1 | ) | × | 1 200 |
= | 86167 200 | + | 433 200 | x | − | 1 2 | ( | x | − | 1 | ) |
= | 86167 200 | + | 433 200 | x | − | 1 2 | x | + | 1 2 | × | 1 |
= | 86167 200 | + | 433 200 | x | − | 1 2 | x | + | 1 2 |
= | 86267 200 | + | 333 200 | x |
86267 200 | + | 333 200 | x | = | 75601 100 |
333 200 | x | = | 75601 100 | − | 86267 200 |
333 200 | x | = | 12987 40 |
x | = | 12987 40 | ÷ | 333 200 |
= | 12987 40 | × | 200 333 |
= | 39 | × | 5 |
x | = | 195 |