Respostas

2014-02-19T20:30:11-03:00
3x-4=5x-10
3x - 5x = -10 + 4
-2x = -6
x = -6 / -2
x = 3
1 5 1
2014-02-19T20:36:00-03:00
3x-4=5x-10
3x-5x=-10+4
-2x=-6     (-1)
2x=6
x=6/2
x=3
1 5 1