| ( | 42849 20 | − | 2086 | ) | ÷ | ( | 2114 | − | 2086 | ) | = | ( | 19847 10 | − | 193377 100 | ) | ÷ | ( | x | − | 193377 100 | ) |
| 方程两边同时乘以: | ( | 2114 | − | 2086 | ) | , | ( | x | − | 193377 100 | ) |
| ( | 42849 20 | − | 2086 | ) | ( | x | − | 193377 100 | ) | = | ( | 19847 10 | − | 193377 100 | ) | ( | 2114 | − | 2086 | ) |
42849 20 | ( | x | − | 193377 100 | ) | − | 2086 | ( | x | − | 193377 100 | ) | = | ( | 19847 10 | − | 193377 100 | ) | ( | 2114 | − | 2086 | ) |
42849 20 | ( | x | − | 193377 100 | ) | − | 2086 | ( | x | − | 193377 100 | ) | = | 19847 10 | ( | 2114 | − | 2086 | ) | − | 193377 100 | ( | 2114 | − | 2086 | ) |
42849 20 | x | − | 42849 20 | × | 193377 100 | − | 2086 | ( | x | − | 193377 100 | ) | = | 19847 10 | ( | 2114 | − | 2086 | ) | − | 193377 100 | ( | 2114 | − | 2086 | ) |
42849 20 | x | − | 42849 20 | × | 193377 100 | − | 2086 | ( | x | − | 193377 100 | ) | = | 19847 10 | × | 2114 | − | 19847 10 | × | 2086 | − | 193377 100 | ( | 2114 | − | 2086 | ) |
42849 20 | x | − | 8286011073 2000 | − | 2086 | ( | x | − | 193377 100 | ) | = | 20978279 5 | − | 20700421 5 | − | 193377 100 | ( | 2114 | − | 2086 | ) |
42849 20 | x | − | 8286011073 2000 | − | 2086 | ( | x | − | 193377 100 | ) | = | 277858 5 | − | 193377 100 | ( | 2114 | − | 2086 | ) |
42849 20 | x | − | 8286011073 2000 | − | 2086 | x | + | 2086 | × | 193377 100 | = | 277858 5 | − | 193377 100 | ( | 2114 | − | 2086 | ) |
42849 20 | x | − | 8286011073 2000 | − | 2086 | x | + | 2086 | × | 193377 100 | = | 277858 5 | − | 193377 100 | × | 2114 | + | 193377 100 | × | 2086 |
42849 20 | x | − | 8286011073 2000 | − | 2086 | x | + | 201692211 50 | = | 277858 5 | − | 204399489 50 | + | 201692211 50 |