解方程.4% 2.8:X=6:13 14-3X=18÷9.
问题描述:
解方程.4%
2.8:X=6:13
14-3X=18÷9.
答
(1)2.8:x=6:13, 6x=2.8×13, 6x=36.4, &n...
解方程.4%
2.8:X=6:13
14-3X=18÷9.
(1)2.8:x=6:13, 6x=2.8×13, 6x=36.4, &n...