Question 208785
3x/(x-2) = 6/(x-2)
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at  first  glance,,,3x=6,,,or  x=2
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However,  this  results  in  6/0=6/0,,,,or  undefined
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Starting  over  by  cross  multiplying,
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3x(x-2) = 6(x-2)
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3x^2 -6x = 6x -12
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3x^2 =12
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x^2 =4
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x= +/- 2
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checking  x=2,,,,,3(2)/(2-2) = 6/(2-2),,,,or  6/0=6/0,,,undefined
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checking  x=-2,,,,,3(-2)/(-2-2) =6/(-2-2),,,or  -6/-4=+6/-4,,,,not  true
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net  result,  x=2  results  in  undefined  answer,,,while  x=-2,  is  not  true
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