9=5*10^-10+log(x/5) what is the value of x

9=5*10^-10+log(x/5)  

Divide both sides by 5*10^-10 

9/( 5*10^-10 )   evaluating this, we have.......18,000,000,000

Therefore.....

18,000,000,000 = log (x/5) .........This says that......

10^{18,000,000,000} = x/5       Muktiplying both sides by 5, we have

x = 5*10^{18,000,000,000}      .......which is a REALLY BIG NUMBER   ......  !!!!!

Corrected answer.......(thanks for catching my error, alan!!!)

Subtract 5*10^-10 from both sides

9 -5*10^-10 = log(x/5)      evaluate the left side

8.9999999995 = log(x/5)    

Exponentially, this says that

10^8.9999999995 = x/5          multiply both sides by 5

5*10^8.9999999995 = x  ≈ 4.9999999942435373 X 10⁹