3^4x=9^3x+7 solve equation

Siamaster asked Dec 1, 2023

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Siamaster asked Dec 1, 2023

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26 votes

3^4x=9^3x+7

Simplify:

81x=729x+7

Subtract 729x from both sides:

81x-729x=729x+7-729x

-648x=7

Divide both sides by -648:

(-648x)/(-648) =(7)/(-648)

$\fbox{x = $(-7)/(-648)$}$

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