If log318 + log33 - log3x = 3, Find x.

Assessment: JAMB UTME - Mathematics - 2011 Subject: General Mathematics

Question 1 Report

Answer Details

log $_{3}^{18}$ + log $_{3}^{3}$ - log $_{3}^{x}$ = 3
log $_{3}^{18}$ + log $_{3}^{3}$ - log $_{3}^{x}$ = 3log33
log $_{3}^{18}$ + log $_{3}^{3}$ - log $_{3}^{x}$ = log333
log3( $\frac{18 \times 3}{X}$ ) = log333
$\frac{18 \times 3}{X}$ = 33
18 x 3 = 27 x X
x = $\frac{18 \times 3}{27}$
= 2

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Logarithms

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If log318 + log33 - log3x = 3, Find x.

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