Question

x€R
$x - \frac{x - 1}{2} = 2$

Answer 1

aducem la la acelas numitor

2x -(x-1) = 4

2x-x+1 = 4

x=3

Answer 2

x - (x - 1)/2 = 2

2x - x + 1 = 4

x = 3