(1\3)^x+2 +5(1\3)^x+1 -(1\3)^x меньше 7

[latex] (\frac{1}{3} )^x\cdot((\frac{1}{3} )^2+5\cdot(\frac{1}{3} )-1)\ \textless \ 7 \\ \\ (\frac{1}{3} )^x\cdot(\frac{1}{9} +\frac{15}{9} - \frac{9}{9} )\ \textless \ 7 \\ \\ (\frac{1}{3} )^x\cdot(\frac{7}{9})\ \textless \ 7 [/latex] [latex](\frac{1}{3} )^x\ \textless \ 9 \\ \\ (\frac{1}{3} )^x\ \textless \ ( \frac{1}{3})^{-2} \\ \\x\ \textgreater \ -2 [/latex]