-5|8x-7|=-45

Lösung

- 5 ∣ 8 x - 7 ∣ = - 45

x = - \frac{1}{4} or x = 2

Dezimale

x = - 0.25, x = 2

Schritte zur Lösung

- 5 ∣ 8 x - 7 ∣ = - 45

Teile beide Seiten durch

- 5

∣ 8 x - 7 ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

8 x - 7 = - 9 or 8 x - 7 = 9

8 x - 7 = - 9 or 8 x - 7 = 9

x = - \frac{1}{4} or x = 2

A (x) = ∣ 6 - 7 x ∣

∣ 2 z - 3 ∣ = 4 z - 2

2 ∣ 4 x + 6 ∣ - 52 = - 8

2 ∣ 3 x - 3 ∣ = 18

- 6 + ∣ x - 4 ∣ = - 6