“△”是一种新运算,规定:a△b = 3a + 2b,那么2△3 =_______________.

问题描述:

“△”是一种新运算,规定:a△b = 3a + 2b,那么2△3 =_______________.

a△b = 3a + 2b
2△3=3×2+2×3=12