1.6x=8/7,求x.
问题描述:
1.6x=8/7,求x.
答
16x/10=8/7 x=5/7
答
x=8/(7*1.6)=5/7
答
1.6x=8/7
16/10x=8/7
8/5x=8/7
x=8/7*5/8
=5/7
答
八分之七除以一点六,x等于0.71428569