Respostas

2014-02-04T21:08:32-02:00
2x + 2/3 + 3x + 5/2 = 9
12x + 4 + 18x + 15 = 54
12x + 18x = 54 - 4 - 15
30x = 35
x = 35/30
x = 1.1666....