(|-4k+9|)/8 =5

Lösung

\frac{∣ - 4 k + 9 ∣}{8} = 5

k = - \frac{31}{4} or k = \frac{49}{4}

Dezimale

k = - 7.75, k = 12.25

Schritte zur Lösung

\frac{∣ - 4 k + 9 ∣}{8} = 5

Multipliziere beide Seiten mit

8

∣ - 4 k + 9 ∣ = 40

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 4 k + 9 = - 40 or - 4 k + 9 = 40

- 4 k + 9 = - 40 or - 4 k + 9 = 40

k = - \frac{31}{4} or k = \frac{49}{4}

∣ y + 4 ∣ = 1

∣ 2 x - 8 ∣ = 16

∣ 3 x - 6 ∣ = x + 2

∣ 2 x - 8 ∣ = 12

∣ 4 u - 12 ∣ = 4