(1+3⼀4-7⼀8-7⼀12)*(-24)要过程

2025-06-26 11:19:27
推荐回答(1个)
回答1:

(1+3/4-7/8-7/12)*(-24)
=-24-18+21+14
=-7
6.868*(-5)+6.868*(-12)+6.868)*(+17)
=6.868*(-5-12+17)
=0