X | ÷ | 87 | − | 5 | ÷ | 447 10 | − | 5 | ÷ | 45 | − | ( | 80 | − | X | ) | ÷ | 500 | = | 361 1000 |
方程左边 = | X | × | 1 87 | − | 50 447 | − | 1 9 | − | ( | 80 | − | X | ) | × | 1 500 |
= | 1 87 | X | − | 299 1341 | − | ( | 80 | − | X | ) | × | 1 500 |
1 87 | X | − | 299 1341 | − | ( | 80 | − | X | ) | × | 1 500 | = | 361 1000 |
方程左边 = | 1 87 | X | − | 299 1341 | − | 80 | × | 1 500 | + | X | × | 1 500 |
= | 1 87 | X | − | 299 1341 | − | 4 25 | + | X | × | 1 500 |
= | 587 43500 | X | − | 12839 33525 |
587 43500 | X | − | 12839 33525 | = | 361 1000 |
587 43500 | X | = | 361 1000 | + | 12839 33525 |
587 43500 | X | = | 997661 1341000 |
X | = | 997661 1341000 | ÷ | 587 43500 |
= | 997661 1341000 | × | 43500 587 |
= | 997661 894 | × | 29 587 |
X | = | 28932169 524778 |
X | = | 55.132206 |