|7x+7|=77

Lösung

∣ 7 x + 7 ∣ = 77

x = - 12 or x = 10

Schritte zur Lösung

∣ 7 x + 7 ∣ = 77

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 x + 7 = - 77 or 7 x + 7 = 77

7 x + 7 = - 77 or 7 x + 7 = 77

x = - 12 or x = 10

5 + ∣ 3 x + 2 ∣ = 10

∣ 1 - 5 b ∣ = 20

48 = ∣ 8 c ∣

19 = ∣ - 4 + 3 c ∣

1 = ∣ - 3 y + 11 ∣