( | 5500 | × | 12 | × | 9 10 | − | 70 100 | × | 145 | X | × | 32 500 | ) | ÷ | ( | 30 100 | × | 145 | X | + | 5 100 | × | 145 | X | ) | = | 19 500 |
方程两边同时乘以: | ( | 30 100 | × | 145 | X | + | 5 100 | × | 145 | X | ) |
( | 5500 | × | 12 | × | 9 10 | − | 70 100 | × | 145 | X | × | 32 500 | ) | = | 19 500 | ( | 30 100 | × | 145 | X | + | 5 100 | × | 145 | X | ) |
5500 | × | 12 | × | 9 10 | − | 70 100 | × | 145 | X | × | 32 500 | = | 19 500 | ( | 30 100 | × | 145 | X | + | 5 100 | × | 145 | X | ) |
5500 | × | 12 | × | 9 10 | − | 70 100 | × | 145 | X | × | 32 500 | = | 19 500 | × | 30 100 | × | 145 | X | + | 19 500 | × | 5 100 | × | 145 | X |
59400 | − | 812 125 | X | = | 1653 1000 | X | + | 551 2000 | X |
59400 | − | 812 125 | X | = | 3857 2000 | X |
- | 812 125 | X | − | 3857 2000 | X | = | - | 59400 |
- | 16849 2000 | X | = | - | 59400 |
59400 | = | 16849 2000 | X |
16849 2000 | X | = | 59400 |
X | = | 59400 | ÷ | 16849 2000 |
= | 59400 | × | 2000 16849 |
X | = | 118800000 16849 |
X | = | 7050.863553 |