| b/9 |=7

Lösung

\frac{b}{9} = 7

b = - 63 or b = 63

Schritte zur Lösung

\frac{b}{9} = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

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

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

b = - 63 or b = 63

∣ 4 x - 3 ∣ = 7

8 = ∣ 5 y + 2 ∣

3 ∣ x - 2 ∣ = 12

∣ 2 x + 1 ∣ + 4 = x

∣ 8 k - 5 ∣ = 4 k - 23