Question

log3 (x+2) - log3 (2x)= log 3 5

Answer 1

vamos lá...

$\log_3(x+2)-\log_32x=\log_35 \\ \\ aplicando~~a~~propriedade \\ \\ \log_3 \frac{x+2}{2x} =\log_35 \\ \\ \frac{x+2}{2x} =5 \\ \\ 10x=x+2 \\ 10x-x=2 \\ 9x=2 \\ \\ x= \frac{2}{9}$