3|4x+5|=51

Lösung

3 ∣ 4 x + 5 ∣ = 51

x = - \frac{11}{2} or x = 3

Dezimale

x = - 5.5, x = 3

Schritte zur Lösung

3 ∣ 4 x + 5 ∣ = 51

Teile beide Seiten durch

3

∣ 4 x + 5 ∣ = 17

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

4 x + 5 = - 17 or 4 x + 5 = 17

4 x + 5 = - 17 or 4 x + 5 = 17

x = - \frac{11}{2} or x = 3

ln y - x^{2} = 0

ln y - x^{2} = 2

4 ∣ x + 1 ∣ + 6 = 12

- 4 ∣ 8 - 5 n ∣ = 13, 20

3 = ∣ u + 4 ∣ - 9