b-0.2b怎么算

b-0.2b怎么算
2025-05-19 02:28:30
推荐回答(3个)
回答1:

b-0.2b
=(1-0.2)b
=0.8b

回答2:

b-0.2b=0.8b
如果b有具体的数值,再带入式子

回答3:

=(1-0.2)b
=0.8b