ANSWER:
[tex]x=\operatorname{\log}_{10}(315)[/tex]
STEP-BY-STEP EXPLANATION:
We have the following equation:
[tex]10^x=315[/tex]
We solve for x:
[tex]\begin{gathered} \log_{10}\mleft(10^x\mright)=\log_{10}\mleft(315\mright) \\ x=\log_{10}(315) \end{gathered}[/tex]
