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1 vote
Solve for x: log6x-log2=1

User Diidu
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2 Answers

3 votes
Log(6x/2)=1
Log(3x)=1
This is the same as saying 10^1=3x
10=3x
x=10/3 or 3 and 1/3
User Cephus
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7.4k points
6 votes

log6x-log2=1;\ D:6x > 0\to x > 0\to x\in\mathbb{R^+}\\\\log6x-log2=1\\\\log\left(6x:2\right)=log10^1\\\\3x=10\ /:3\\\\x=(10)/(3)\\\\x=3(1)/(3)\in D



a > 0\ \wedge\ b > 0\ \wedge\ c > 0\ \wedge\ d\in\mathbb{R}\\\\log_ab-log_ac=log_a(b:c)\\\\log_ab=d\iff\ a^d=b\ \ (log_ab=log_aa^d)
User Dwilliss
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8.1k points