Rewrite the equation as -5log(d)=-20.
Divide each term by -5 and simplify.
Divide each term in -5log(d)=-20 by -5.
Cancel the common factor of -5.
Cancel the common factor.
Divide log(d) by 1.
Divide -20 by -5.
Rewrite log(d)=4 in exponential form using the definition of a logarithm. If x and b are positive real numbers and b≠1, then logb(x)=y is equivalent to by=x.
Raise 10 to the power of 4.
Rewrite the equation as d=10000.
Solve for d -20=-5 log of d