5/12-x+1/4=1/3
问题描述:
5/12-x+1/4=1/3
答
x=5/12+3/12-4/12
x=4/12
x=1/3
5/12-x+1/4=1/3
x=5/12+3/12-4/12
x=4/12
x=1/3