28乘以0.6-( )乘以16=7.2
问题描述:
28乘以0.6-( )乘以16=7.2
答
28乘以0.6-( )乘以16=7.2
16.8-16x=7.2
-16x=7.2-16.8
-16x=9.6
x=-0.6