Verified answer

If they have same base (i.e base10)

*log(a)/(b) = log(a) - log(b)

Log(x+ 4) - log2 = log (5x + 1)

log(x+4)/2 = log (5x + 1)

(x + 4)/2 = 5x + 1 ...because.. have same base

x+4=10x + 2

9x=2

x=2/9