( | 151 | + | 437 2 | ) | ÷ | 31 | × | x | + | 279 | ÷ | 31 | × | ( | x | + | 15 | ) | + | 124 | ÷ | 31 | × | ( | x | + | 30 | ) | = | 2670 |
方程左边 = | ( | 151 | + | 437 2 | ) | × | 1 31 | x | + | 9 | ( | x | + | 15 | ) | + | 4 | ( | x | + | 30 | ) |
( | 151 | + | 437 2 | ) | × | 1 31 | x | + | 9 | ( | x | + | 15 | ) | + | 4 | ( | x | + | 30 | ) | = | 2670 |
方程左边 = | 151 | × | 1 31 | x | + | 437 2 | × | 1 31 | x | + | 9 | ( | x | + | 15 | ) | + | 4 | ( | x | + | 30 | ) |
= | 151 31 | x | + | 437 62 | x | + | 9 | ( | x | + | 15 | ) | + | 4 | ( | x | + | 30 | ) |
= | 739 62 | x | + | 9 | ( | x | + | 15 | ) | + | 4 | ( | x | + | 30 | ) |
= | 739 62 | x | + | 9 | x | + | 9 | × | 15 | + | 4 | ( | x | + | 30 | ) |
= | 739 62 | x | + | 9 | x | + | 135 | + | 4 | ( | x | + | 30 | ) |
= | 1297 62 | x | + | 135 | + | 4 | ( | x | + | 30 | ) |
= | 1297 62 | x | + | 135 | + | 4 | x | + | 4 | × | 30 |
= | 1297 62 | x | + | 135 | + | 4 | x | + | 120 |
= | 1545 62 | x | + | 255 |
1545 62 | x | + | 255 | = | 2670 |
1545 62 | x | = | 2670 | − | 255 |
1545 62 | x | = | 2415 |
x | = | 2415 | ÷ | 1545 62 |
= | 2415 | × | 62 1545 |
= | 161 | × | 62 103 |
x | = | 9982 103 |
x | = | 96.912621 |