21=2/3x-4

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Solution for 21=2/3x-4 equation: 


x in (-oo:+oo)

21 = (2/3)*x-4 // - (2/3)*x-4

4-((2/3)*x)+21 = 0

(-2/3)*x+4+21 = 0

25-2/3*x = 0 // - 25

-2/3*x = -25 // : -2/3

x = -25/(-2/3)

x = 75/2

x = 75/2

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