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2-2/3x-2=4-2
-2/3x=2 |x3|
-2x=6 |:-2|
x=-3
b.3/4(x+3)+1/2(x-1)=0
(3x+9)/4=(-x+1)/2
6x+18=-4x+4
10x=-14
x=-1,4
c. 2x-3/3+4x+4/2=2x+3
2x-1+4x+2=2x+3
6x+1=2x+3
4x=2
x=1/2=0,5