7 5000 | ( | 9 | ÷ | 14 | ) | x | = | 1 50 | + | 1 1250 | ( | 700 | − | ( | 23 | ÷ | 14 | ) | x | ) |
方程左边 = | 7 5000 | × | 9 | ÷ | 14 | × | x |
= | 9 10000 | x |
9 10000 | x | = | 1 50 | + | 1 1250 | ( | 700 | − | ( | 23 | ÷ | 14 | ) | x | ) |
方程右边 = | 1 50 | + | 1 1250 | × | 700 | − | 1 1250 | ( | 23 | ÷ | 14 | ) | x |
= | 1 50 | + | 14 25 | − | 1 1250 | ( | 23 | ÷ | 14 | ) | x |
= | 29 50 | − | 1 1250 | ( | 23 | ÷ | 14 | ) | x |
= | 29 50 | − | 1 1250 | × | 23 | ÷ | 14 | × | x |
= | 29 50 | − | 23 17500 | x |
9 10000 | x | = | 29 50 | − | 23 17500 | x |
9 10000 | x | + | 23 17500 | x | = | 29 50 |
31 14000 | x | = | 29 50 |
x | = | 29 50 | ÷ | 31 14000 |
= | 29 50 | × | 14000 31 |
= | 29 | × | 280 31 |
x | = | 8120 31 |
x | = | 261.935484 |