420000000 | = | 9 10 | ( | 71 25 | × | 10000 | × | 270 | × | 270 | x | + | 2 | × | 100000 | ( | 764 | × | 2 | + | 509 | ) | x | + | 9 10 | × | 13 4 | × | 10000 | ) |
方程右边 = | 9 10 | × | 71 25 | × | 10000 | × | 270 | × | 270 | x | + | 9 10 | × | 2 | × | 100000 | ( | 764 | × | 2 | + | 509 | ) | x | + | 9 10 |
= | 1863324000 | x | + | 180000 | ( | 764 | × | 2 | + | 509 | ) | x | + | 26325 | ( | 390 | × | 390 | − | 270 | × | 270 | ) | x | + | 164916000 | x |
= | 2028240000 | x | + | 180000 | ( | 764 | × | 2 | + | 509 | ) | x | + | 26325 | ( | 390 | × | 390 | − | 270 | × | 270 | ) | x |
= | 2028240000 | x | + | 180000 | × | 764 | × | 2 | x | + | 180000 | × | 509 | x | + | 26325 | ( | 390 | × | 390 | − | 270 | × | 270 | ) | x |
= | 2028240000 | x | + | 275040000 | x | + | 91620000 | x | + | 26325 | ( | 390 | × | 390 | − | 270 | × | 270 | ) | x |
= | 2394900000 | x | + | 26325 | ( | 390 | × | 390 | − | 270 | × | 270 | ) | x |
= | 2394900000 | x | + | 26325 | × | 390 | × | 390 | x | − | 26325 | × | 270 | × | 270 | x |
= | 2394900000 | x | + | 4004032500 | x | − | 1919092500 | x |
= | 4479840000 | x |
420000000 | = | 4479840000 | x |
- | 4479840000 | x | = | - | 420000000 |
420000000 | = | 4479840000 | x |
4479840000 | x | = | 420000000 |
x | = | 420000000 | ÷ | 4479840000 |
= | 420000000 | × | 1 4479840000 |
= | 875 | × | 1 9333 |
x | = | 875 9333 |
x | = | 0.093753 |