0, x>-1, \\ x+1=2^2, \\ x=3;" alt="log_2(x+1)=2, \\ x+1>0, x>-1, \\ x+1=2^2, \\ x=3;" align="absmiddle" class="latex-formula">
0, 5x>-7, x>-1,4, \\ 5x+7=22, \\ 5x=15, \\ x=3;" alt="log_{17}(5x+7)=log_{17}22, \\ 5x+7>0, 5x>-7, x>-1,4, \\ 5x+7=22, \\ 5x=15, \\ x=3;" align="absmiddle" class="latex-formula">
0, x>-4, \\ 4+x=4, \\ x=0." alt="log_3(4+x) =log_34, \\ 4+x>0, x>-4, \\ 4+x=4, \\ x=0." align="absmiddle" class="latex-formula">