|7+x|=2

Lösung

∣ 7 + x ∣ = 2

x = - 9 or x = - 5

Schritte zur Lösung

∣ 7 + x ∣ = 2

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 + x = - 2 or 7 + x = 2

7 + x = - 2 or 7 + x = 2

x = - 9 or x = - 5

- 3 ∣ x - 5 ∣ + 8 = - 36

∣ x - 3 ∣ = 5 x + 13

∣ 2 x + 6 ∣ = 2

\frac{2}{3} ∣ x ∣ = 9

∣ 3 + 5 x ∣ = 7