Question

1) -11b-5+9b=
2) -16-2*(-v-8)=
3) 9x(y-2)-y(3+5x) =
4)-a(x+y) -x(y-a) =
Помогите позязя :-[

Answer 1

1)-2b-5
2)2v
3)4xy-18x-3y
4)-ay-xy