作业帮2【4/3×-(2/3×-1/2)】=3/4x
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2【4/3×-(2/3×-1/2)】=3/4x
2【4/3×-(2/3×-1/2)】=3/4x
2【4/3×-(2/3×-1/2)】=3/4x
8x/3 -4x/3+1 =3x/4
4x/3 +1=3x/4
16x+12=9x
∴7x=-12
x=-12/7
2【4/3×-(2/3×-1/2)】=3/4x
2(2/3x+1/2)=3/4x
4/3x+1=3/4x
7/12x=-1
x=-12/7