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x in (-oo:+oo)
2/15 = (3/2)*((4/9)*x-2) // - (3/2)*((4/9)*x-2)
2/15-((3/2)*((4/9)*x-2)) = 0
(-3/2)*((4/9)*x-2)+2/15 = 0
2/15-3/2*(4/9*x-2) = 0
(-3/2*15*(4/9*x-2))/15+2/15 = 0
2-3/2*15*(4/9*x-2) = 0
47-10*x = 0
(47-10*x)/15 = 0
(47-10*x)/15 = 0 // * 15
47-10*x = 0
47-10*x = 0 // - 47
-10*x = -47 // : -10
x = -47/(-10)
x = 47/10
x = 47/10
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