Respostas

2014-08-25T14:50:50-03:00
  • Usuário do Brainly
2014-08-25T14:56:08-03:00
2x- \frac{1}{3} =x-x- \frac{1}{5}

pode cancelar o +x com -x

mmc=15

 \frac{30x-5=-3}{15}

30x=-3+5

30x=2

x= \frac{2}{30}

x= \frac{1}{15}