x-2/9x=5/12 解方程
问题描述:
x-2/9x=5/12 解方程
答
7/9x=5/12
x=15/28
答
x-2/9x=5/12
7/9x=5/12
x=45/84
x=15/28
答
x-2/9x=5/12
7/9x=5/12
x=15/28
答
7x/9=5/12
x=5/12X9/7
x=15/28