Hard to answer this without knowing what you mean. Instead of a comma, should there be another sign of operation?
Assuming this is
subtract 4 from both sides
divide by 6
Take logs of both sides and use the fact that log(ab) = b*log(a) and log(a/b) = log(a) - log(b)
divide by 1.7
Use the fact that log10a = b means a = 10b
and since log1010 = 1
You can complete the calculation.