How do you solve 7 * 3^t = 5 * 2^t?

1 Answer
Christopher T.
May 3, 2018

By using Log function

Explanation:

7 * 3^t = 5 * 2 ^ t
log ( 7 * 3^t ) = log ( 5 * 2^t )
log(7)+log(3^t) = log(5)+log(2^t)
log(7)+tlog(3) = log(5)+tlog(2)
log(7)-log(5) = tlog(2)-tlog(3)
log(7/5)=t(log(2)-log(3))
log(7/5)=t(log(2/3))
log(7/5)/(log(2/3))=t
then make good use of your cal.

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