对于两个数a,b定义一种运算“﹡”,a﹡b=3a+2b,则3﹡5=___.

2025-06-28 00:15:01
推荐回答(1个)
回答1:

3﹡5
=3×3+2×5
=9+10
=19.
故答案为:19.