Respostas

2014-02-20T12:12:31-03:00
Resposta

 -(-2x+1) -3(5x-2)= -6+(-x+8)

2x - 1 -3.(5x-2) = - 6 + (-x+8)

2x - 1 - 15x + 6 = -6 -x + 8

-13x + 5 = -x + 2

-13x + x = 2 - 5

-12x = -3  vezes -1

12x = 3

x = 3/12

x = 1/4