Resposta :
Continuação da conta:
X= - 30+2x 45/2
X= 15
(X,Y)= (15, 45/2)
{15+2x 45/2=60
{15-2x45/2=-30
{60=60
{-30=-30
(X,Y)= (15, 45/2)
X= - 30+2x 45/2
X= 15
(X,Y)= (15, 45/2)
{15+2x 45/2=60
{15-2x45/2=-30
{60=60
{-30=-30
(X,Y)= (15, 45/2)
