( | 19701 500 | + | x | ) | × | 7 4 | = | 19701 500 | + | 9013 125 | − | x |
方程左边 = | 19701 500 | × | 7 4 | + | x | × | 7 4 |
= | 137907 2000 | + | x | × | 7 4 |
137907 2000 | + | 7 4 | x | = | 19701 500 | + | 9013 125 | − | x |
方程右边 = | 55753 500 | − | x |
137907 2000 | + | 7 4 | x | = | 55753 500 | − | x |
7 4 | x | + | x | = | 55753 500 | − | 137907 2000 |
11 4 | x | = | 55753 500 | − | 137907 2000 |
11 4 | x | = | 17021 400 |
x | = | 17021 400 | ÷ | 11 4 |
= | 17021 400 | × | 4 11 |
= | 17021 100 | × | 1 11 |
x | = | 17021 1100 |
x | = | 15.473636 |