x/0.6+0.4=4.9
所以x=2.7能列一下方程式吗方程式就是x/0.6+0.4=4.9啊计算过程，麻烦了哦。（4.9-0.4）*0.6=x的值
x除以0.6加上0.4等于4.9求x等于多少的方程式
x除以0.6加上0.4等于4.9求x等于多少的方程式
数学人气：515 ℃时间：2019-10-23 11:07:29
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