3 X-1/5 X=7/2
问题描述:
3 X-1/5 X=7/2
答
(3-1/5)X=7/2
14/5X=7/2
X=7/2÷14/5
X=5/4
3 X-1/5 X=7/2
(3-1/5)X=7/2
14/5X=7/2
X=7/2÷14/5
X=5/4