Respostas

2014-04-30T10:41:05-03:00
4x-3y-13=0
3y = 4x - 13
y = 4x/3 - 13/3 (resp)
2014-04-30T10:54:39-03:00
4x-3y-13=0
4x = 0 + 3y + 13
4x = 13 + 3y
4x = 16y
4x - 16y = 0