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

3^4x=9^3x+7 solve equation
asked 115k views
5 votes
3^4x=9^3x+7 solve equation

asked
User Daqs
by
7.7k points

1 Answer

2 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 = $(-7)/(-648)$}

answered
User Michael Lang
by
8.0k points
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