2/3+2/3x-4x=4/21

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


x in (-oo:+oo)

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

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

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

10/21-10/3*x = 0 // - 10/21

-10/3*x = -10/21 // : -10/3

x = -10/21/(-10/3)

x = 1/7

x = 1/7

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