3 years ago

Repost of my question i need help quicklyy help plzz

Mathematics

1 answer:

GuDViN [60]3 years ago

8 0

Answer:

According to logarithmic properties.... The right hand side can be written as

log base 7 (180/3).....which is log base 7 60

So according to the question cancel out the log base 7 from both sides....

Then we get 8r + 20 = 60

That is 8r = 40..

That is r = 5......

Therefore the value of r is 5

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