359 250 | X | + | 7937 1000 | ( | 80 | − | X | ) | = | 143 |
方程左边 = | 359 250 | X | + | 7937 1000 | × | 80 | − | 7937 1000 | X |
= | 359 250 | X | + | 15874 25 | − | 7937 1000 | X |
= | - | 6501 1000 | X | + | 15874 25 |
- | 6501 1000 | X | + | 15874 25 | = | 143 |
- | 6501 1000 | X | = | 143 | − | 15874 25 |
- | 6501 1000 | X | = | - | 12299 25 |
12299 25 | = | 6501 1000 | X |
6501 1000 | X | = | 12299 25 |
X | = | 12299 25 | ÷ | 6501 1000 |
= | 12299 25 | × | 1000 6501 |
= | 12299 | × | 40 6501 |
X | = | 491960 6501 |
X | = | 75.674512 |