Question

Which equations are equivalent to log 4x=3

Answer 1

I'm not sure that this is what you wanted, but the solution is x = 2500

`log(4x) = 3 \\ rule > \: log_(a)(b) = x < = > \: b = {a}^(x) \\ 4x = {10}^(3) \\ 4x = 10 \: 000 \\ x = (10 \: 000)/(4) \\ x = 2500`
Note: when we have no number as the logarithmic base, it is 10 by default.