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2/3= 3x+2/2x-2
4x-4=9x+6
4x-9x=6+4
-5x=10
x=-2
b)
6x-1/x+1 = 2,3/1,2
7,2x-1,2=2,3x+2,3
7,2x-2,3x=2,3+1,2
4,9x=3,5
x=⁵/₇
c)
-x/3x-1 = 2x/1-6x
-x+6x²=6x²-2x
6x²-6x²-x+2x=0
x=0