Question

3x-1/2-(1-x)=x-1/4
Alguém sabe?

Answer 1

3x-1/2-1+x=x-1/4
3x+x-x=1/2+1-1/4
3x=5/4
x=(5/4)/3=5/12

Answer 2

3x-1-(1-x)=x-1
     2              4

12x - 2 -4(1-x) = 4x - 1 ==> 12x - 2 - 4 + 4x = 4x - 1

12x + 4x - 4x = - 1 + 2 + 4 ==> 12x = 5 ==> x = 5/12