Respostas

  • Usuário do Brainly
2014-07-29T12:09:40-03:00
5(1-x)-2x+1 = 3(2+x)

5-5x-2x+1 = 6+3x

-5x-2x-3x = 6-5-1

-10x = 6-6

-10x = 0

x = 0