初一数学计算题求帮忙!!!

2025-06-28 09:11:47
推荐回答(2个)
回答1:

(1)24[(2\2x-1)-(4\10x-17)]=24[(3\2x+5 )+1]
24x-12-60x+17=16x+48+24
24x-60x-16x=48+24+12-17
-52x=67
x=-52\67
(2)12[(0.3\5x-0.4)+(2\1.3-3x)]=12(1.2\1.8-8x)
200x-16+7.8-18x=18-80x
200x-18x+80x=18+16-7.8
262x=26.2
x=0.1

回答2:

学习上别偷懒啊