18-4×(2/3)^-1+(-6)^2÷9

问题描述:

18-4×(2/3)^-1+(-6)^2÷9
快啊,人都哪去啦,帮帮我吧,很急很急!

=18-4× (3/2)-36÷9
=18-6-4
=8