Respostas

2014-05-29T20:42:41-03:00
y+9y+5=-15
y + 9y = -15 - 5
10y = -20
y = -20 / 10
y = -2
1 5 1
2014-05-29T20:46:25-03:00
Y+9y=-15-5
10y=-20
y=-20÷10
y=-2