|8x-1|=9

Lösung

∣ 8 x - 1 ∣ = 9

x = - 1 or x = \frac{5}{4}

Dezimale

x = - 1, x = 1.25

Schritte zur Lösung

∣ 8 x - 1 ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

8 x - 1 = - 9 or 8 x - 1 = 9

8 x - 1 = - 9 or 8 x - 1 = 9

x = - 1 or x = \frac{5}{4}

2 ∣ 2 x - 3 ∣ = \frac{5}{2}

so l v e f or x, - f = ∣ x ∣ + 9

so l v e f or a, ∣ a + b ∣ = 4

∣ 5 x + 4 ∣ = 4

\frac{3}{8} ∣ x ∣ = 4