Respostas

2014-03-06T15:40:25-03:00
4x-6=14
4x=14+6
4x=20
x=20
     4
x=5
1 1 1
2014-03-06T15:43:10-03:00
4x-6=14
4x-6=-2x
-2x=14
x=14/2=7
1 2 1