|5x+7|=42

Lösung

∣ 5 x + 7 ∣ = 42

x = - \frac{49}{5} or x = 7

Dezimale

x = - 9.8, x = 7

Schritte zur Lösung

∣ 5 x + 7 ∣ = 42

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 x + 7 = - 42 or 5 x + 7 = 42

5 x + 7 = - 42 or 5 x + 7 = 42

x = - \frac{49}{5} or x = 7

∣ 5 x + 7 ∣ = 27

∣ y ∣ = \frac{1 - 2 x}{x - 2}

4 ∣ 3 x + 1 ∣ + 4 = 6

9 ∣ x - 3 ∣ = 9

∣ x + 6 ∣ = 15