( | 8 | x | + | ( | 3 2 | x | × | 3 | ) | × | 22 | + | 8 | × | 12 | x | ) | = | 7000 |
方程左边 = | 8 | x | + | ( | 3 2 | x | × | 3 | ) | × | 22 | + | 8 | × | 12 | x |
= | 8 | x | + | ( | 3 2 | x | × | 3 | ) | × | 22 | + | 96 | x |
= | 104 | x | + | ( | 3 2 | x | × | 3 | ) | × | 22 |
= | 104 | x | + | 3 2 | x | × | 3 | × | 22 |
= | 104 | x | + | 99 | x |
= | 203 | x |
203 | x | = | 7000 |
x | = | 7000 | ÷ | 203 |
= | 7000 | × | 1 203 |
= | 1000 | × | 1 29 |
x | = | 1000 29 |
x | = | 34.482759 |