8=|-2b+1|

Lösung

8 = ∣ - 2 b + 1 ∣

b = - \frac{7}{2} or b = \frac{9}{2}

Dezimale

b = - 3.5, b = 4.5

Schritte zur Lösung

8 = ∣ - 2 b + 1 ∣

Tausche die Seiten

∣ - 2 b + 1 ∣ = 8

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 2 b + 1 = - 8 or - 2 b + 1 = 8

- 2 b + 1 = - 8 or - 2 b + 1 = 8

b = - \frac{7}{2} or b = \frac{9}{2}

2 ∣ 2 x + 3 ∣ + 7 = 13

∣ 8 + 2 x ∣ + 2 x = 40

∣ 2 m + 7 ∣ = 6 m + 13

5 - 2 ∣ x - 3 ∣ = 3

10 = ∣ 2 x - 12 ∣