Respostas

2014-02-18T17:17:14-03:00
15+24x=13x+37
15-37=13x-24x
-22=(-11x)
11x=22
x=22/11
x=2
2014-02-18T17:19:09-03:00
15+24x=13x+37
24x-13x=37-15
11x=22
x= 22   = 2
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