Respostas

  • Usuário do Brainly
2014-04-03T01:28:01-03:00
2014-04-03T01:46:29-03:00
X + 10 = 9x - 10
x - 9x = -10 - 10
-8x = -20
x = 20/8
[x = 5/2 ou 2,5]
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