Respostas

2014-02-04T15:30:21-02:00
7(x-5)=3(x+1)
7x-35=3x+3
7x-3x=3+35
4x=38
x=38/4
x=19/2 ou x=9,5
2014-02-04T15:33:26-02:00
7x-35=3x+1
7x-3x=3+35
4x=38
x=38/4
x=9,5
7(x-5)=3(x+1)
7x-35=3x+3
7x-3x=3+35
4x=38
x=38/4
x=19/2 ou x=9,5