37 625 | × | 12500 | A | ÷ | ( | 363 5000 | ( | 1 | + | 12500 | A | ) | ) | = | 4200 | A | ÷ | ( | 1 | + | 4200 | A | ) |
方程两边同时乘以: | ( | 363 5000 | ( | 1 | + | 12500 | A | ) | ) | , | ( | 1 | + | 4200 | A | ) |
37 625 | × | 12500 | A | ( | 1 | + | 4200 | A | ) | = | 4200 | A | ( | 363 5000 | ( | 1 | + | 12500 | A | ) | ) |
37 625 | × | 12500 | A | × | 1 | + | 37 625 | × | 12500 | A | × | 4200 | A | = | 4200 | A | ( | 363 5000 | ( | 1 | + | 12500 | A | ) | ) |
37 625 | × | 12500 | A | × | 1 | + | 37 625 | × | 12500 | A | × | 4200 | A | = | 4200 | A | × | 363 5000 | ( | 1 | + | 12500 | A | ) |
740 | A | + | 3108000 | A | A | = | 7623 25 | A | ( | 1 | + | 12500 | A | ) |
740 | A | + | 3108000 | A | A | = | 7623 25 | A | × | 1 | + | 7623 25 | A | × | 12500 | A |
740 | A | + | 3108000 | A | A | = | 7623 25 | A | + | 3811500 | A | A |