2/3x-219 - solution

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Solution for 2/3x-219 equation:

x in (-oo:+oo)

(2/3)*x-21 > 9 // - 9

(2/3)*x-21-9 > 0

2/3*x-30 > 0 // + 30

2/3*x > 30 // : 2/3

x > 30/2/3

x > 45

x in (45:+oo)

(45:+oo)

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