|10+2n|=28

Lösung

∣ 10 + 2 n ∣ = 28

n = - 19 or n = 9

Schritte zur Lösung

∣ 10 + 2 n ∣ = 28

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

10 + 2 n = - 28 or 10 + 2 n = 28

10 + 2 n = - 28 or 10 + 2 n = 28

n = - 19 or n = 9

x^{2} - 2 = x + 4

19 = ∣ - 3 x + 13 ∣

2 - 3 ∣ x - 4 ∣ = - 7

21 = ∣ c - 30 ∣

9 ∣ r + 8 ∣ - 4 = - 22