Solve the logarithmic equation.

210 + 10 log x = 30

**Solution**

201 + 10 log x = 30

10 log x = -180 (Subtract 210 from each side)

log x = -18 (Divide each side by 10).

Next , exponentiate each side of the equation. Since the equation is in terms of the common logarithm, use base 10. The rule of exponentiation states that if m = n, then .

log x = -18

Finally, apply the inverse property

X =

Thus, the solution is x =