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x€R
[tex]x - \frac{x - 1}{2} = 2[/tex]




Răspuns :


aducem la la acelas numitor

2x -(x-1) = 4

2x-x+1 = 4

x=3

x - (x - 1)/2 = 2

2x - x + 1 = 4

x = 3