log10(7x-5)=2. x ka valu kea he
Answers
Answered by
10
log10( 7x - 5)=2
1( 7x-5)=2
7x= 5+2
x=7/7
x=1
manu5650:
wlc
Answered by
14
Answer:
log b base a =X
can be written as b = a^x
similarly
log (7x-5) base 10 = 2
can be written as
(7x - 5 ) =10 ^ 2
7x-5=100
X= 15
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