|r-5|=2

Lösung

∣ r - 5 ∣ = 2

r = 3 or r = 7

Schritte zur Lösung

∣ r - 5 ∣ = 2

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

r - 5 = - 2 or r - 5 = 2

r - 5 = - 2 or r - 5 = 2

r = 3 or r = 7

8 = ∣ 5 - x ∣

∣ q - 1 ∣ = 1

so l v e f or x, y = ∣ 4 - x ∣

20 = ∣ - x + 6 ∣

∣ x - 13 ∣ = 8