Log7x=log7 4+log7 3 please help I can not anderstand thanks

3 answers

If log 7 mean logarithm to base b = 7 then :

log 7 ( x ) = log 7 ( 4 ) + log 7 ( 3 )

log ( a ) + log ( b ) = log ( a * b )

log 7 ( 4 ) + log 7 ( 3 ) = log 7 ( 4 * 3 ) = log 7 ( 12 )

log 7 ( x ) = log 7 ( 12 )

x = 12

Thank you !!:)

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