0\; \; \to \; \; x>-2,5\\\\\star \; \; log_{a}x=b\; \; \Rightarrow \; \; x=a^{b}\; ;\; \; b>0\; ,\; a>0\; ,\; a\ne 1\; \; \star \\\\5+2x=3^3\\\\2x=27-5\\\\2x=22\\\\x=11>-2,5\\\\Otvet:\; \; x=11\; ." alt="log_3(5+2x)=3\; \; ,\; \; \; ODZ:\; 5+2x>0\; \; \to \; \; x>-2,5\\\\\star \; \; log_{a}x=b\; \; \Rightarrow \; \; x=a^{b}\; ;\; \; b>0\; ,\; a>0\; ,\; a\ne 1\; \; \star \\\\5+2x=3^3\\\\2x=27-5\\\\2x=22\\\\x=11>-2,5\\\\Otvet:\; \; x=11\; ." align="absmiddle" class="latex-formula">