|a+7|=15

Lösung

∣ a + 7 ∣ = 15

a = - 22 or a = 8

Schritte zur Lösung

∣ a + 7 ∣ = 15

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

a + 7 = - 15 or a + 7 = 15

a + 7 = - 15 or a + 7 = 15

a = - 22 or a = 8

24 = ∣ s + 830 ∣ - 6

∣ 2 x + 7 ∣ - 6 = 6

∣ - 4 b - 3 ∣ - 6 = 21

∣ - 10 - 3 p ∣ = 13

7 = ∣ 8 x + 6 ∣