1.b+(b-8)=50 b=__
2.3(c-7)=12 c=__
3.4(a-5)=0 a=__
4.2b-8=b-3 b=__
5.c+7=17-4c c=__
6.7(3a-1)=28 a=__
7.4(2b-1)=20 b=__
8.5(2c+3)=15 c=__
9.z+25=3(z+1) z=__
10.4(2y+1)=20(3y-31) y=__
更新1:
11. 15x-45-20x+50=41+36x-96-20x-24 x=__
11. 15x-45-20x+50=41+36x-96-20x-24 x=__
收錄日期: 2021-04-27 20:47:12
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140209000015KK02407