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Mathematics
Azaria Holt
8 March, 00:08
14. solve log 3x - log 13 = 2
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Dana
8 March, 02:36
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Log3x - log13 = 2
This is to base 10, because the base was not specified.
log A - log B = log (A/B) law of logarithm
log (3x/13) = 2
By law of logarithm, conversion from logarithm to indices
(3x/13) = 10²
3x/13 = 100
3x = 100*13
x = 1300/3
x = 1300/3 = 433 1/3
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