4100 | + | 1500 | + | x | + | ( | ( | 4100 | + | x | ) | ÷ | 87 4 | × | 8 | ) | = | 7000 |
方程左边 = | 5600 | + | x | + | ( | ( | 4100 | + | x | ) | ÷ | 87 4 | × | 8 | ) |
5600 | + | x | + | ( | ( | 4100 | + | x | ) | ÷ | 87 4 | × | 8 | ) | = | 7000 |
方程左边 = | 5600 | + | x | + | ( | 4100 | + | x | ) | ÷ | 87 4 | × | 8 |
= | 5600 | + | x | + | ( | 4100 | + | x | ) | × | 32 87 |
= | 5600 | + | x | + | 4100 | × | 32 87 | + | x | × | 32 87 |
= | 5600 | + | x | + | 131200 87 | + | x | × | 32 87 |
= | 618400 87 | + | 119 87 | x |
618400 87 | + | 119 87 | x | = | 7000 |
119 87 | x | = | 7000 | - | 618400 87 |
119 87 | x | = | - | 9400 87 |
x | = | - | 9400 87 | ÷ | 119 87 |
= | - | 9400 87 | × | 87 119 |
= | - | 9400 | × | 1 119 |
x | = | - | 9400 119 |
x | = | - 78.991597 |