求 x: x = 35/(6-2/5).
求解 x 的方程 x = 35/(6-2/5): 1. 乘 6 乘 5/5,然后从分数中减去 2/5,得到分母 28/5: x = 35/(6-2/5) = 35/(30/5-2/5) = 35/(28/5 2. 要用分数,我们乘其反向数: x = 35/(28/5) = 35 * 5/28. 3. 简化,我们得到: x = 35 * 5/28 = 5 * 5/4 = 25/4. 因此,解法是 x = 25/4.