Respostas

2014-06-20T14:07:18-03:00
4x+63=211
4x=211-63
4x=148
x=148/4
x=37
1 4 1
2014-06-20T14:08:20-03:00
4x+63=211
4x=211-63
4x=148
x=148÷4
x=37
1 5 1
4x+63=211
4x=211-63
4x=148
x=148÷4
x=37