5=|r-3|

Lösung

5 = ∣ r - 3 ∣

r = - 2 or r = 8

Schritte zur Lösung

5 = ∣ r - 3 ∣

Tausche die Seiten

∣ r - 3 ∣ = 5

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

r - 3 = - 5 or r - 3 = 5

r - 3 = - 5 or r - 3 = 5

r = - 2 or r = 8

3 ∣ 3 - 5 r ∣ + 18 = - 3

∣ w ∣ = 3

- 8 ∣ 2 x - 4 ∣ = - 72

2 ∣ x + 1 ∣ - 3 = 13

9 ∣ 3 d ∣ = 0