( | 630 | + | X | ) | ÷ | 2 | × | 2300 | = | 1630 |
方程左边 = | ( | 630 | + | X | ) | × | 1150 |
( | 630 | + | X | ) | × | 1150 | = | 1630 |
方程左边 = | 630 | × | 1150 | + | X | × | 1150 |
= | 724500 | + | X | × | 1150 |
724500 | + | 1150 | X | = | 1630 |
1150 | X | = | 1630 | − | 724500 |
1150 | X | = | - | 722870 |
X | = | - | 722870 | ÷ | 1150 |
= | - | 722870 | × | 1 1150 |
= | - | 72287 | × | 1 115 |
X | = | - | 72287 115 |
X | = | - 628.582609 |