| 43698000 | + | 222720 | + | x | × | 77 10000 | + | ( | x | × | 53 50 | − | 30000000 | ) | × | 3 2000 | + | 90000 | = | x |
| Left side of the equation = | 44010720 | + | 77 10000 | x | + | ( | x | × | 53 50 | − | 30000000 | ) | × | 3 2000 |
| 44010720 | + | 77 10000 | x | + | ( | x | × | 53 50 | − | 30000000 | ) | × | 3 2000 | = | x |
| Left side of the equation = | 44010720 | + | 77 10000 | x | + | x | × | 53 50 | × | 3 2000 | − | 30000000 | × | 3 2000 |
| = | 44010720 | + | 77 10000 | x | + | x | × | 159 100000 | − | 45000 |
| = | 43965720 | + | 929 100000 | x |
| 43965720 | + | 929 100000 | x | = | x |
929 100000 | x | − | x | = | - | 43965720 |
| - | 99071 100000 | x | = | - | 43965720 |
| 43965720 | = | 99071 100000 | x |
99071 100000 | x | = | 43965720 |
| x | = | 43965720 | ÷ | 99071 100000 |
| = | 43965720 | × | 100000 99071 |
| x | = | 4396572000000 99071 |