( | x | − | 6000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 3000 | × | 1 10 | ÷ | 5000 | = | ( | x | − | 3000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 3000 | × | 1 10 | ÷ | 6000 |
方程左边 = | ( | x | − | 6000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 3 50 |
( | x | − | 6000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 3 50 | = | ( | x | − | 3000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 3000 | × | 1 10 | ÷ | 6000 |
方程左边 = | x | ( | 1 | − | 1 4 | ) | − | 6000 | × | 2 25 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 3 50 |
= | x | ( | 1 | − | 1 4 | ) | − | 480 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 3 50 |
= | x | × | 1 | − | x | × | 1 4 | − | 480 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 3 50 |
= | 3 4 | x | − | 480 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 3 50 |
= | 3 4 | x | − | 480 | × | 1 | + | 480 | × | 1 4 | − | 400 | ( | 1 | − | 1 4 | ) | − | 3 50 |
= | 3 4 | x | − | 480 | + | 120 | − | 400 | ( | 1 | − | 1 4 | ) | − | 3 50 |
= | 3 4 | x | − | 18003 50 | − | 400 | ( | 1 | − | 1 4 | ) |
= | 3 4 | x | − | 18003 50 | − | 400 | × | 1 | + | 400 | × | 1 4 |
= | 3 4 | x | − | 18003 50 | − | 400 | + | 100 |
= | 3 4 | x | − | 33003 50 |
3 4 | x | − | 33003 50 | = | ( | x | − | 3000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 3000 | × | 1 10 | ÷ | 6000 |
方程右边 = | ( | x | − | 3000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 1 20 |
3 4 | x | − | 33003 50 | = | ( | x | − | 3000 | × | 2 25 | − | 400 | ) | ( | 1 | − | 1 4 | ) | − | 1 20 |
方程右边 = | x | ( | 1 | − | 1 4 | ) | − | 3000 | × | 2 25 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 1 20 |
= | x | ( | 1 | − | 1 4 | ) | − | 240 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 1 20 |
= | x | × | 1 | − | x | × | 1 4 | − | 240 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 1 20 |
= | 3 4 | x | − | 240 | ( | 1 | − | 1 4 | ) | − | 400 | ( | 1 | − | 1 4 | ) | − | 1 20 |
= | 3 4 | x | − | 240 | × | 1 | + | 240 | × | 1 4 | − | 400 | ( | 1 | − | 1 4 | ) | − | 1 20 |
= | 3 4 | x | − | 240 | + | 60 | − | 400 | ( | 1 | − | 1 4 | ) | − | 1 20 |
= | 3 4 | x | − | 3601 20 | − | 400 | ( | 1 | − | 1 4 | ) |
= | 3 4 | x | − | 3601 20 | − | 400 | × | 1 | + | 400 | × | 1 4 |
= | 3 4 | x | − | 3601 20 | − | 400 | + | 100 |
= | 3 4 | x | − | 9601 20 |
x= | 14002 25 |