y | = | ( | 529 2000 | × | 71 250 | + | 1 5 | × | 57 200 | ) | ÷ | ( | 529 2000 | × | 549 1000 | ) |
方程两边同时乘以: | ( | 529 2000 | × | 549 1000 | ) |
y | ( | 529 2000 | × | 549 1000 | ) | = | ( | 529 2000 | × | 71 250 | + | 1 5 | × | 57 200 | ) |
y | × | 529 2000 | × | 549 1000 | = | ( | 529 2000 | × | 71 250 | + | 1 5 | × | 57 200 | ) |
y | × | 529 2000 | × | 549 1000 | = | 529 2000 | × | 71 250 | + | 1 5 | × | 57 200 |
y | × | 290421 2000000 | = | 37559 500000 | + | 57 1000 |
290421 2000000 | y | = | 66059 500000 |
y | = | 66059 500000 | ÷ | 290421 2000000 |
= | 66059 500000 | × | 2000000 290421 |
= | 66059 | × | 4 290421 |
y | = | 264236 290421 |
y | = | 0.909838 |