Resposta:

[tex]2 - [( \frac{1}{2} - \frac{1}{3}).3 + 2 \div ( \frac{3}{5} - 1) ] = [/tex]

[tex] = 2 - [( \frac{3}{6} - \frac{2}{3}) . 3 + 2 \div ( \frac{3}{5} - \frac{1}{5} ) ] = [/tex]

[tex] = 2 - [ \frac{1}{6}.3 + 2 \div \frac{2}{5} ] = [/tex]

[tex] = 2 -[ \frac{3}{6} + 5 ] = 2 - [ \frac{1}{2} + 5] = [/tex]

[tex] = 2 - \frac{11}{2} = - \frac{7}{2} [/tex]

Espero ter ajudado.

Bons estudos.