Respostas

  • Usuário do Brainly
2014-06-30T15:22:51-03:00
0,1x + 3x + 0,97x = 14 + 2x
0,1x + 3x + 0,97x - 2x = 14
2,07x = 14
x = 14/2,07
x = 6,76