( | 25218349 125000 | + | a | ) | × | 159 100 | × | 2 | = | ( | 7790017 15625 | + | a | ) | × | 43 20 |
方程左边 = | ( | 25218349 125000 | + | a | ) | × | 159 50 |
( | 25218349 125000 | + | a | ) | × | 159 50 | = | ( | 7790017 15625 | + | a | ) | × | 43 20 |
方程左边 = | 25218349 125000 | × | 159 50 | + | a | × | 159 50 |
= | 4009717491 6250000 | + | a | × | 159 50 |
4009717491 6250000 | + | 159 50 | a | = | ( | 7790017 15625 | + | a | ) | × | 43 20 |
方程右边 = | 7790017 15625 | × | 43 20 | + | a | × | 43 20 |
= | 334970731 312500 | + | a | × | 43 20 |
4009717491 6250000 | + | 159 50 | a | = | 334970731 312500 | + | 43 20 | a |
159 50 | a | − | 43 20 | a | = | 334970731 312500 | − | 4009717491 6250000 |
103 100 | a | = | 334970731 312500 | − | 4009717491 6250000 |