|7x|=9

Lösung

∣ 7 x ∣ = 9

x = - \frac{9}{7} or x = \frac{9}{7}

Dezimale

x = - 1.28571 \dots, x = 1.28571 \dots

Schritte zur Lösung

∣ 7 x ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 x = - 9 or 7 x = 9

7 x = - 9 or 7 x = 9

x = - \frac{9}{7} or x = \frac{9}{7}

∣ 7 x ∣ = 7

∣ x - 8 ∣ + 10 = 28

3 ∣ x ∣ - 6 = 15

∣ 2 x - 1 ∣ = 12

∣ 3 x + 3 ∣ = 11