143 10 | × | 400 | x | + | 300 | × | 1964 | + | 305 | ( | 3200 | + | 10 | ( | x | − | 166 | ) | ) | − | 300 | × | 1964 | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) | = | 0 |
方程左边 = | 5720 | x | + | 589200 | + | 305 | ( | 3200 | + | 10 | ( | x | − | 166 | ) | ) | − | 589200 | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 5720 | x | + | 0 | + | 305 | ( | 3200 | + | 10 | ( | x | − | 166 | ) | ) | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
5720 | x | + | 0 | + | 305 | ( | 3200 | + | 10 | ( | x | − | 166 | ) | ) | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) | = | 0 |
方程左边 = | 5720 | x | + | 0 | + | 305 | × | 3200 | + | 305 | × | 10 | ( | x | − | 166 | ) | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 5720 | x | + | 0 | + | 976000 | + | 3050 | ( | x | − | 166 | ) | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 5720 | x | + | 976000 | + | 3050 | ( | x | − | 166 | ) | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 5720 | x | + | 976000 | + | 3050 | x | − | 3050 | × | 166 | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 5720 | x | + | 976000 | + | 3050 | x | − | 506300 | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 8770 | x | + | 469700 | − | 305 | ( | 10 | ( | 634 | − | x | ) | + | 3200 | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 8770 | x | + | 469700 | − | 305 | × | 10 | ( | 634 | − | x | ) | − | 305 | × | 3200 | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 8770 | x | + | 469700 | − | 3050 | ( | 634 | − | x | ) | − | 976000 | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 8770 | x | − | 506300 | − | 3050 | ( | 634 | − | x | ) | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 8770 | x | − | 506300 | − | 3050 | × | 634 | + | 3050 | x | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 8770 | x | − | 506300 | − | 1933700 | + | 3050 | x | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 11820 | x | − | 2440000 | + | ( | ( | 5 2 | x | ÷ | 650 | ) | − | 1 | ) |
= | 11820 | x | − | 2440000 | + | ( | 5 2 | x | ÷ | 650 | ) | − | 1 |
= | 11820 | x | − | 2440001 | + | ( | 5 2 | x | ÷ | 650 | ) |
= | 11820 | x | − | 2440001 | + | 5 2 | x | ÷ | 650 |
= | 11820 | x | − | 2440001 | + | 1 260 | x |
= | 3073201 260 | x | − | 2440001 |
3073201 260 | x | − | 2440001 | = | 0 |
3073201 260 | x | = | 0 | + | 2440001 |
3073201 260 | x | = | 2440001 |
x | = | 2440001 | ÷ | 3073201 260 |
= | 2440001 | × | 260 3073201 |
x | = | 634400260 3073201 |
x | = | 206.429797 |