13=|2b+12|

Lösung

13 = ∣ 2 b + 12 ∣

b = - \frac{25}{2} or b = \frac{1}{2}

Dezimale

b = - 12.5, b = 0.5

Schritte zur Lösung

13 = ∣ 2 b + 12 ∣

Tausche die Seiten

∣ 2 b + 12 ∣ = 13

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 b + 12 = - 13 or 2 b + 12 = 13

2 b + 12 = - 13 or 2 b + 12 = 13

b = - \frac{25}{2} or b = \frac{1}{2}

so l v e f or y, ∣ x ∣ + y = 0

2 x - 3 ∣ x - 1 ∣ + 1 = 0

∣ 2 x - 12 ∣ = ∣ 4 x + 24 ∣

- 10 = 120 ∣ x ∣

7 + ∣ 8 a ∣ = 31