如题所述
3分之2+6分之1-x=0.5
2/3+1/6-x=0.5
X=4/6+1/6-3/6=2/6=1/3
3又4分之1+2x-2分之1=6又4分之3
13/4+2x-1/2=27/4
2X=27/4-13/4+2/4=3
X=3/2
2/3+1/6-x=0.5
X=4/6+1/6-3/6=2/6=1/3
3又4分之1+2x-2分之1=6又4分之3
13/4+2x-1/2=27/4
2X=27/4-13/4+2/4=3
X=3/2
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