|9-4y|=20

Lösung

∣ 9 - 4 y ∣ = 20

y = - \frac{11}{4} or y = \frac{29}{4}

Dezimale

y = - 2.75, y = 7.25

Schritte zur Lösung

∣ 9 - 4 y ∣ = 20

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

9 - 4 y = - 20 or 9 - 4 y = 20

9 - 4 y = - 20 or 9 - 4 y = 20

y = - \frac{11}{4} or y = \frac{29}{4}

5 ∣ x - 6 ∣ = 12

4 ∣ q ∣ = 0

so l v e f or x, ∣ x + y ∣ = 0

20 = ∣ 1 - 3 x ∣

∣ q + 15 ∣ = 3