|x-1/2 |=2

解

x - \frac{1}{2} = 2

x = - \frac{3}{2} or x = \frac{5}{2}

十進法表記

x = - 1.5, x = 2.5

解答ステップ

x - \frac{1}{2} = 2

絶対規則を適用する:

∣ u ∣ = a, a > 0

の場合は

u = a

u = - a

x - \frac{1}{2} = - 2 or x - \frac{1}{2} = 2

x - \frac{1}{2} = - 2 or x - \frac{1}{2} = 2

x = - \frac{3}{2} or x = \frac{5}{2}