21/6-2x=x/3

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Solution for 21/6-2x=x/3 equation: 


x in (-oo:+oo)

21/6-(2*x) = x/3 // - x/3

21/6-(2*x)-(x/3) = 0

21/6-2*x-(x/3) = 0

7/2-7/3*x = 0 // - 7/2

-7/3*x = -7/2 // : -7/3

x = -7/2/(-7/3)

x = 3/2

x = 3/2

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