化简3a-(a-5)
问题描述:
化简3a-(a-5)
答
3a-(a-5)
=3a-a+5
=2a+5那3(a+y)+1.5(m-y)怎么化简?3(a+y)+1.5(m-y)=3a+3y+1.5m-1.5y=3a+1.5m+1.5y