exercicio:
http://diadematematica.com/vestibular/TEMP/GP_A_C/...
Ola gilberto
a)
2x + 10 = 3x - 5
3x - 2x = 10 + 5
x = 15
b) x = 3
pronto
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Ola gilberto
a)
2x + 10 = 3x - 5
3x - 2x = 10 + 5
x = 15
b) x = 3
pronto