(/为分数线)1.4x=20/3x+162.1/2(x-4)-(3x+4)= -15/2

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/20 12:25:52
(/为分数线)1.4x=20/3x+162.1/2(x-4)-(3x+4)= -15/2
x)cӎgS7<ߵ_PϤ@߸BHP ]{:u,0ikhodTnX A lL @@`E. d8j]] ] [X@h1$c @>~f

(/为分数线)1.4x=20/3x+162.1/2(x-4)-(3x+4)= -15/2
(/为分数线)
1.4x=20/3x+16
2.1/2(x-4)-(3x+4)= -15/2

(/为分数线)1.4x=20/3x+162.1/2(x-4)-(3x+4)= -15/2
1.4x=20/3x+16
12x=20x+48
8x=-48
x=-6
2.1/2(x-4)-(3x+4)= -15/2
x-4-6x-8=-15
-2x=-3
x=3/2