9/1{7/1[5/1(3/y+2+4)+6]+8}=1,用简便算法计算.
问题描述:
9/1{7/1[5/1(3/y+2+4)+6]+8}=1,用简便算法计算.
答
9/1{7/1[5/1(3/y+2+4)+6]+8}=1
7/1[5/1(3/y+2+4)+6]+8=9
7/1[5/1(3/y+2+4)+6]=1
5/1(3/y+2+4)+6=7
5/1(3/y+2+4)=1
3/y+2+4=5
3/y+2=1
3/y=-1
y=-3
答
-3
答
9/1{7/1[5/1(3/y+2+4)+6]+8}=1
7/1[5/1(3/y+2+4)+6]+8=9
7/1[5/1(3/y+2+4)+6]=1
5/1(3/y+2+4)+6=7
5/1(3/y+2+4)=1
3/y+2+4=5
3/y+2=1
3/y=-1
y=-3
象掰蒜头,很有趣