|3x+1|=20

Lösung

∣ 3 x + 1 ∣ = 20

x = - 7 or x = \frac{19}{3}

Dezimale

x = - 7, x = 6.33333 \dots

Schritte zur Lösung

∣ 3 x + 1 ∣ = 20

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

3 x + 1 = - 20 or 3 x + 1 = 20

3 x + 1 = - 20 or 3 x + 1 = 20

x = - 7 or x = \frac{19}{3}

4 ∣ 2 x - 1 ∣ + 4 = 20

\frac{a}{6} - 10 = - 9

- 2 ∣ 5 + 3 x ∣ + 1 = - 5

∣ 3 x + 1 ∣ = 19

3 ∣ x + 4 ∣ - 15 = 0