jenievelope jenievelope

17-01-2019
Mathematics

contestada

log7^x-log7^3=1
if anyone can help me with this problem please help me

Respuesta :

mpecha20 mpecha20

17-01-2019

log7 (x+3) - log7 (x-3) = 1
log7 [(x+3) / (x-3)] = 1
raise both sides to power of 7
(x+3) / (x-3) = 7
7x – 21 = x + 3
6x = 24
x = 4

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