Respostas

  • Usuário do Brainly
2014-07-21T21:44:56-03:00
A) -4x+6y+10x-2y-x= 5x + 4y

b) x+7x+10y-3x = 5x + 10y

c) 2x-8y-6y-y-9x = - 7x - 15y

d 3/2x + 1/y - 1/3x + 2y = (9 - 2)x/6 + (y + 2y²)/y = 7x /6 +1/y+ 2y