1$$\frac{1}{2}$$+(8-7$$\frac{2}{3}$$):$$\frac{1}{2}$$-$$\frac{1}{6}$$ = $$\frac{3}{2}$$ + (8 - $$\frac{23}{3}$$) : $$\frac{1}{2}$$ - $$\frac{1}{6}$$ =
= $$\frac{3}{2}$$ + ($$\frac{24}{3}$$ - $$\frac{23}{3}$$) : $$\frac{1}{2}$$ - $$\frac{1}{6}$$ = $$\frac{3}{2}$$ + $$\frac{1}{3}$$ : $$\frac{1}{2}$$ - $$\frac{1}{6}$$ =
= $$\frac{3}{2}$$ + $$\frac{1}{3}$$ * $$\frac{2}{1}$$ - $$\frac{1}{6}$$ = $$\frac{3}{2}$$ + $$\frac{2}{3}$$ - $$\frac{1}{6}$$ =
= $$\frac{9}{6}$$ + $$\frac{4}{6}$$ - $$\frac{1}{6}$$ = $$\frac{12}{6}$$ = 2
Ответ: 2