( | 19701 500 | + | x | ) | × | 5 2 | = | 19701 500 | + | 17901 250 | − | x |
方程左边 = | 19701 500 | × | 5 2 | + | x | × | 5 2 |
= | 19701 200 | + | x | × | 5 2 |
19701 200 | + | 5 2 | x | = | 19701 500 | + | 17901 250 | − | x |
方程右边 = | 55503 500 | − | x |
19701 200 | + | 5 2 | x | = | 55503 500 | − | x |
5 2 | x | + | x | = | 55503 500 | − | 19701 200 |
7 2 | x | = | 55503 500 | − | 19701 200 |
7 2 | x | = | 12501 1000 |
x | = | 12501 1000 | ÷ | 7 2 |
= | 12501 1000 | × | 2 7 |
= | 12501 500 | × | 1 7 |
x | = | 12501 3500 |
x | = | 3.571714 |