55 | × | 799 100 | + | 528 5 | x | = | 803 5 | × | 399 50 |
方程左边 = | 8789 20 | + | 528 5 | x |
8789 20 | + | 528 5 | x | = | 803 5 | × | 399 50 |
方程右边 = | 320397 250 |
8789 20 | + | 528 5 | x | = | 320397 250 |
528 5 | x | = | 320397 250 | − | 8789 20 |
528 5 | x | = | 421069 500 |
x | = | 421069 500 | ÷ | 528 5 |
= | 421069 500 | × | 5 528 |
= | 38279 100 | × | 1 48 |
x | = | 38279 4800 |
x | = | 7.974792 |