ContourPlot[3.28084 9^x = (9 (9 (3.28084 y-8.5445 10^-14 sqrt(1.32235 10^27 y 2.96509 10^26) 1.47132) 8.5445 10^-14 sqrt(1.32235 10^27 y 2.96509 10^26)-1.47131))/y, {x, 1.7, 2}, {y, 4, 15}]

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