49=|7c|

Lösung

49 = ∣ 7 c ∣

c = - 7 or c = 7

Schritte zur Lösung

49 = ∣ 7 c ∣

Tausche die Seiten

∣ 7 c ∣ = 49

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 c = - 49 or 7 c = 49

7 c = - 49 or 7 c = 49

c = - 7 or c = 7

5 = \frac{c}{3}

∣ - 7 - 9 x ∣ = 2

8 + ∣ 9 - 2 x ∣ = 11

∣ x ∣ + 3 = 0

20 = ∣ 1 - 3 c ∣