左=3／4[2x／3-1／3-8]-2x／3
=½x-¼-6-2x／3
=-x／6-25／4
即-x／6-25／4=1
-x／6=29／4
x=-87／2.
3/4[4/3(1/2x-1/4)-8]-2/3x=1
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