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Zolol [24]
3 years ago
7

Log25x-log5=2 Pplllleeeeeaaaassseee

Mathematics
2 answers:
tester [92]3 years ago
5 0

Answer:

40

Step-by-step explanation:

Andreyy893 years ago
4 0
Since no base is stated, assume base 10
remember
loga-logb=log(a/b)
also
log_a(b)=c translates to a^c=b
and log(a^z)=zlog(a)

log25x-log5=2 means
log_{10}(25x)-log_{10}(5)=2 translates to
log_{10}( \frac{25x}{5} )=2 simplies to
log_{10}(5x)=2 translates to
10^2=5x expands to
100=5x
divide both sides by 5
20=x
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