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