56 | x | − | 40 | x | − | 580 | − | ( | 56 | x | − | 5 | ) | × | 13 100 | × | 3 25 | = | 0 |
方程左边 = | 56 | x | − | 40 | x | − | 580 | − | ( | 56 | x | − | 5 | ) | × | 39 2500 |
= | 16 | x | − | 580 | − | ( | 56 | x | − | 5 | ) | × | 39 2500 |
16 | x | − | 580 | − | ( | 56 | x | − | 5 | ) | × | 39 2500 | = | 0 |
方程左边 = | 16 | x | − | 580 | − | 56 | x | × | 39 2500 | + | 5 | × | 39 2500 |
= | 16 | x | − | 580 | − | 546 625 | x | + | 39 500 |
= | 9454 625 | x | − | 289961 500 |
9454 625 | x | − | 289961 500 | = | 0 |
9454 625 | x | = | 0 | + | 289961 500 |
9454 625 | x | = | 289961 500 |
x | = | 289961 500 | ÷ | 9454 625 |
= | 289961 500 | × | 625 9454 |
= | 289961 4 | × | 5 9454 |
x | = | 1449805 37816 |
x | = | 38.338402 |