\(11^x=\frac{10.11^6+67.121^3}{7}=\frac{11^6.77}{7}\Leftrightarrow11^x=11^7\Rightarrow x=7\)
\(7.11^x=10.11^6+67.121^3\)
\(7.11^x=10.\left(11^2\right)^3+67.121^3\)
\(7.11^x=10.121^3+67.121^3\)
\(7.11^x=121^3.\left(10+67\right)\)
\(7.11^x=121^3.77\)
\(7.11^x=11^6.11.7\)
\(7.11^x=11^7.7\)
\(\Rightarrow11^x=11^7\)
\(\Rightarrow x=7\)
Vậy \(x=7\)
Ủng hộ mk nha!!!