Solve for x (to three decimal places)

Question

14=7^x

Answer 1

7^x = 14

Take log of both sides & simplify:

log(7^x) = log(14)

x•log(7) = log(14)

x = log(14)/log(7)

x = 1,146128 / 0.845098 = 1.356207

x = 1.356 to three decimal places