Respostas

2014-07-19T19:17:21-03:00
Olá, Souzasbu!

2x + 15 = 49
2x = 49 - 15
2x = 34
x = 34 / 2
x = 17
2014-07-19T19:24:08-03:00
2x+15=49                                                                                                                             2x=49-15                            2x=34    x=34/2  x=17