Question

-8/9-(-2/3)=
(-2)+(-7)

Answer 1

$- frac{8}{9} -( -frac{2}{3})=- frac{8}{9}+ frac{2}{3}=- frac{8}{9}+ frac{6}{9}=- frac{2}{9}$

-9

Answer 2

(-2)+(-7)=-2-7=-(2+7)=-9