|-4r-20|=0

Lösung

∣ - 4 r - 20 ∣ = 0

r = - 5

Schritte zur Lösung

∣ - 4 r - 20 ∣ = 0

Wende Absoluteregel an: Wenn

∣ u ∣ = 0

dann

u = 0

- 4 r - 20 = 0

- 4 r - 20 = 0 : r = - 5

r = - 5

∣ x ∣ - 15 = - 10

∣ v - 2 ∣ + 5 = 23

2 - x = 2 ∣ x + 1 ∣

∣ 5 x + 3 ∣ = 10

∣ 5 x + 3 ∣ = 19