Respostas

2014-08-25T16:13:42-03:00
3/4x=1/2(x+5)
3/4x=1/2x+5/2
3/2x=x+5
x=x+5 dividido por 3/2
x=(2x+10)/3
3x=2x+10
3x-2x=10
x=10
3 5 3