# How do you solve 7 + logx = 4?

Mar 3, 2018

$x = \frac{1}{1000} = 0.001$

#### Explanation:

$\log x + 7 = 4$

$\implies \log x = - 3$

$\implies x = {10}^{-} 3$

$\implies x = \frac{1}{10} ^ 3$

$\implies x = \frac{1}{1000}$

If you want to write it as a decimal, that'll be $0.001$.