Respostas

2014-08-05T17:17:10-03:00
1... 4x+x=10+5
5x=15
x=15/5
x=3

2....8x-6=24-2x
8x+2x=6-24
10x=30
x=30/10
x=3

Achoo q é assim, se estiver errado perdão...!!!
2014-08-05T17:17:57-03:00
4x+x=10+5
5x=15
x=15
    5
x=3

8x-6=24-2x
8x+2x=24+6
10x=30
x=30
    10
x=3

;)