960 | × | 100 | + | 240 | ( | 350 | x | − | 250 | ) | = | 43 50 | × | 100 | × | 1200 |
方程左边 = | 96000 | + | 240 | ( | 350 | x | − | 250 | ) |
96000 | + | 240 | ( | 350 | x | − | 250 | ) | = | 43 50 | × | 100 | × | 1200 |
方程左边 = | 96000 | + | 240 | × | 350 | x | − | 240 | × | 250 |
= | 96000 | + | 84000 | x | − | 60000 |
= | 36000 | + | 84000 | x |
36000 | + | 84000 | x | = | 43 50 | × | 100 | × | 1200 |
方程右边 = | 103200 |
36000 | + | 84000 | x | = | 103200 |
84000 | x | = | 103200 | − | 36000 |
84000 | x | = | 67200 |
x | = | 67200 | ÷ | 84000 |
= | 67200 | × | 1 84000 |
= | 4 | × | 1 5 |
x | = | 4 5 |
x | = | 0.8 |