\(D:10-4x\ \textgreater \ 0 \wedge 10-3x\ \textgreater \ 0\\
D:4x\ \textless \ 10 \wedge 3x\ \textless \ 10\\
D:x\ \textless \ 2.5 \wedge x\ \textless \ 3.\overline{3}\\
D:x\ \textless \ 2.5\\\\
\log(10-4x)=\log(10-3x)\\
10-4x=10-3x\\
-3x+4x=10-10\\
x=0\)
