1990 | + | X | + | ( | 1990 | + | X | ) | ÷ | 26 | × | 133 100 | = | 6500 |
方程左边 = | 1990 | + | X | + | ( | 1990 | + | X | ) | × | 133 2600 |
1990 | + | X | + | ( | 1990 | + | X | ) | × | 133 2600 | = | 6500 |
方程左边 = | 1990 | + | X | + | 1990 | × | 133 2600 | + | X | × | 133 2600 |
= | 1990 | + | X | + | 26467 260 | + | X | × | 133 2600 |
= | 543867 260 | + | 2733 2600 | X |
543867 260 | + | 2733 2600 | X | = | 6500 |
2733 2600 | X | = | 6500 | − | 543867 260 |
2733 2600 | X | = | 1146133 260 |
X | = | 1146133 260 | ÷ | 2733 2600 |
= | 1146133 260 | × | 2600 2733 |
= | 1146133 | × | 10 2733 |
X | = | 11461330 2733 |
X | = | 4193.680937 |