( | 103375261 100 | + | x | ) | ( | 1 | + | 3 20 | + | 3 25 | + | 3 50 | + | 3 1000 | ) | + | 349920 | = | 13385918 5 |
方程左边 = | 103375261 100 | ( | 1 | + | 3 20 | + | 3 25 | + | 3 50 | + | 3 1000 | ) | + | x | ( | 1 | + | 3 20 | + | 3 25 | + | 3 50 | + | 3 1000 | ) | + | 349920 |
= | 103375261 100 | × | 1 | + | 103375261 100 | × | 3 20 | + | 103375261 100 | × | 3 25 | + | 103375261 100 | × | 3 50 | + | 103375261 100 | × | 3 1000 | + | x | ( | 1 | + | 3 20 | + | 3 25 | + | 3 50 | + | 3 1000 | ) |
= | 103375261 100 | + | 310125783 2000 | + | 310125783 2500 | + | 310125783 5000 | + | 310125783 100000 | + | x | ( | 1 | + | 3 20 | + | 3 25 | + | 3 50 | + | 3 1000 | ) | + | 349920 |