|-3+a|=7

Lösung

∣ - 3 + a ∣ = 7

a = - 4 or a = 10

Schritte zur Lösung

∣ - 3 + a ∣ = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 3 + a = - 7 or - 3 + a = 7

- 3 + a = - 7 or - 3 + a = 7

a = - 4 or a = 10

∣ 2 v - 5 ∣ = 7

∣ u + 6 ∣ = 2

\frac{x}{2} - 3 = 1

∣ x ∣ = 3 x - 1

∣ 7 x + 3 ∣ = 6