|-3z-9|=13

Lösung

∣ - 3 z - 9 ∣ = 13

z = - \frac{22}{3} or z = \frac{4}{3}

Dezimale

z = - 7.33333 \dots, z = 1.33333 \dots

Schritte zur Lösung

∣ - 3 z - 9 ∣ = 13

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 3 z - 9 = - 13 or - 3 z - 9 = 13

- 3 z - 9 = - 13 or - 3 z - 9 = 13

z = - \frac{22}{3} or z = \frac{4}{3}

20 = ∣ - 5 w ∣

∣ 3 - 2 t ∣ + 5 = 16

∣ 4 + 9 m ∣ + 4 = 8

∣ 2 k + 10 ∣ + 9 = 15

∣ s - 84 ∣ = 1