3 X-1/5 X=7/2
问题描述:
3 X-1/5 X=7/2
答
我也不好╮(╯﹏╰)╭
答
14/5x=7/2
x=5/4
答
(3-1/5)X=7/2
14/5X=7/2
X=7/2÷14/5
X=5/4
答
15x/5-x/5=7/2
14x/5=7/2
x=5/4