( | a | − | 25 | ) | × | 19 1000000 | = | 3 200 |
方程左边 = | a | × | 19 1000000 | − | 25 | × | 19 1000000 |
= | a | × | 19 1000000 | − | 19 40000 |
19 1000000 | a | − | 19 40000 | = | 3 200 |
19 1000000 | a | = | 3 200 | + | 19 40000 |
19 1000000 | a | = | 619 40000 |
a | = | 619 40000 | ÷ | 19 1000000 |
= | 619 40000 | × | 1000000 19 |
= | 619 | × | 25 19 |
a | = | 15475 19 |
a | = | 814.473684 |