Respostas

2014-05-22T22:05:48-03:00
3x+5-2x+9=8
3x – 2x = 8-5-9
X = -6
2 5 2
2014-05-22T22:44:24-03:00
3x+5-2x+9=8
3x-2x=8-9-5
x=8-14
x= -6