Respostas

2014-08-14T20:37:40-03:00
2014-08-14T20:44:40-03:00
-5y+2y = -3y-8y = -11y-3y = -14y+7y = -7y-6y = -13y+2y = -11y+10y = -1y-4y = -5y-9y = -14y-y = -15y+7y = -8y+12y = 4y-9y = -5y-15y = -20y+2y = -18y-4y = -22y-5y = -27y-3y = -30y