Question

Solve for the unknown variable.

3e^(7x)=72

Answer 1

so far i got e^(7x)=24

Answer 2

what is the next step?

Answer 3

now take log on both side

Answer 4

can u do that

Answer 5

after that use this property\[\ln a^b=b*\ln(a) \]

Answer 6

\[x=\frac{ 1 }{ 7 } \ln (24)\]
\[x=0.45400769005\]

Answer 7

thanks you

Answer 8

thanks @Jesstho.-.