5|-5b+6|=55

Lösung

5 ∣ - 5 b + 6 ∣ = 55

b = - 1 or b = \frac{17}{5}

Dezimale

b = - 1, b = 3.4

Schritte zur Lösung

5 ∣ - 5 b + 6 ∣ = 55

Teile beide Seiten durch

5

∣ - 5 b + 6 ∣ = 11

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 5 b + 6 = - 11 or - 5 b + 6 = 11

- 5 b + 6 = - 11 or - 5 b + 6 = 11

b = - 1 or b = \frac{17}{5}

∣ n ∣ = 0

∣ n ∣ = 7

∣ a - 11 ∣ - 9 = - 13

∣ n ∣ = 9

13 = ∣ 2 x - 3 ∣