-8|5-2x|=-20

Lösung

- 8 ∣ 5 - 2 x ∣ = - 20

x = \frac{5}{4} or x = \frac{15}{4}

Dezimale

x = 1.25, x = 3.75

Schritte zur Lösung

- 8 ∣ 5 - 2 x ∣ = - 20

Teile beide Seiten durch

- 8

∣ 5 - 2 x ∣ = \frac{5}{2}

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 - 2 x = - \frac{5}{2} or 5 - 2 x = \frac{5}{2}

5 - 2 x = - \frac{5}{2} or 5 - 2 x = \frac{5}{2}

x = \frac{5}{4} or x = \frac{15}{4}

∣ 7 + 7 v ∣ = 21

\frac{∣ x + 3 ∣}{7} - 2 = 3

2 - ∣ 2 w + 8 ∣ = 6

∣ 17 + 8 x ∣ - 64 = - 32

∣ 6 v - 3 ∣ + 15 = 54