381 100 | × | 100 | + | X | × | 111 20 | = | ( | 100 | + | X | ) | × | 107 25 |
方程左边 = | 381 | + | X | × | 111 20 |
381 | + | 111 20 | X | = | ( | 100 | + | X | ) | × | 107 25 |
方程右边 = | 100 | × | 107 25 | + | X | × | 107 25 |
= | 428 | + | X | × | 107 25 |
381 | + | 111 20 | X | = | 428 | + | 107 25 | X |
111 20 | X | − | 107 25 | X | = | 428 | − | 381 |
127 100 | X | = | 428 | − | 381 |
127 100 | X | = | 47 |
X | = | 47 | ÷ | 127 100 |
= | 47 | × | 100 127 |
X | = | 4700 127 |
X | = | 37.007874 |