Question

How do you solve `-9.3e^(10b)=-67`?

Answer 1

See below

Explanation:

Note that

`-9.3e^(10b)=-67`

It's the same that `e^(10b)=(-67)/(-9.3)=7.2043`

Take ln in both sides `10blne=ln 7.2043`

But `ln e=1`

`10b=ln7.2043`

`b=ln7.2043/10=0.1975`