-2(2x-1)=x/3
-4x+2=x/3 |·3
-12x+6=x
-12x-x=-6
-13x=-6 |:(-13)
x=6/13
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-2(2x-1)=x/3
-4x+2=x/3 |·3
-12x+6=x
-12x-x=-6
-13x=-6 |:(-13)
x=6/13