( | ( | ( | x | × | 3 | × | 7 4 | ) | ÷ | 1500 | ) | + | ( | ( | x | × | 8 5 | ) | − | 1500 | ) | ) | × | 20 | = | 300000 |
方程左边 = | ( | ( | x | × | 3 | × | 7 4 | ) | ÷ | 1500 | ) | × | 20 | + | ( | ( | x | × | 8 5 | ) | − | 1500 | ) | × | 20 |
= | ( | x | × | 3 | × | 7 4 | ) | ÷ | 1500 | × | 20 | + | ( | ( | x | × | 8 5 | ) | − | 1500 | ) | × | 20 |
= | ( | x | × | 3 | × | 7 4 | ) | × | 1 75 | + | ( | ( | x | × | 8 5 | ) | − | 1500 | ) | × | 20 |
= | x | × | 3 | × | 7 4 | × | 1 75 | + | ( | ( | x | × | 8 5 | ) | − | 1500 | ) | × | 20 |
= | x | × | 7 100 | + | ( | ( | x | × | 8 5 | ) | − | 1500 | ) | × | 20 |
= | 7 100 | x | + | ( | x | × | 8 5 | ) | × | 20 | − | 1500 | × | 20 |
= | 7 100 | x | + | ( | x | × | 8 5 | ) | × | 20 | − | 30000 |
= | 7 100 | x | + | x | × | 8 5 | × | 20 | − | 30000 |
= | 7 100 | x | + | x | × | 32 | − | 30000 |
= | 3207 100 | x | − | 30000 |
3207 100 | x | − | 30000 | = | 300000 |
3207 100 | x | = | 300000 | + | 30000 |
3207 100 | x | = | 330000 |
x | = | 330000 | ÷ | 3207 100 |
= | 330000 | × | 100 3207 |
= | 110000 | × | 100 1069 |
x | = | 11000000 1069 |
x | = | 10289.990645 |