Question

qual e a conta (3+xy)-(-xy)+(xy)

Answer 1

(3+XY) - (-XY) +(XY)=
(3+XY) +XY +XY=
3+XY +XY +XY=
3+ 3XY=
3XY= -3
XY = -3/3
XY = - 1

Answer 2

(3+xy)-(-xy)+(xy)
3 + xy +xy + xy
3 + 3xy


Obs; ( -  *  - = +)