\(13+3.\left(x-6\right)=5^6:5^4\)
\(13+3.\left(x-6\right)=5^2=25\)
\(3.\left(x-6\right)=25-13\)
\(3.\left(x-6\right)=12\)
\(x-6=4\)
\(x=10\)
Chắc đề tìm x hả em?
\(13+3.\left(x-6\right)=5^6:5^4\\ \Leftrightarrow13+3x-18=5^{6-4}\\ \Leftrightarrow3x=25-13+18\\ \Leftrightarrow3x=30\\ \Leftrightarrow x=10\)