Respostas

  • Usuário do Brainly
2014-08-05T15:38:48-03:00
2 (2x+7) +3 (3x-5) = 3 (4x+5) -1
4x + 14 + 9x - 15 = 12x + 15 - 1
4x + 9x - 12x = 15 - 1 - 14 + 15
x = 15
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2014-08-05T15:43:27-03:00
2(2X+7) +3 (3X-5) = 3(4X+5) -1
4x +14 +9X -15= 12X +15 -1
4X + 9X - 12X = 15 + 15 -14 -1
13X - 12X = 30 - 15
X = 15

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