|7r-4|=24

Lösung

∣ 7 r - 4 ∣ = 24

r = - \frac{20}{7} or r = 4

Dezimale

r = - 2.85714 \dots, r = 4

Schritte zur Lösung

∣ 7 r - 4 ∣ = 24

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 r - 4 = - 24 or 7 r - 4 = 24

7 r - 4 = - 24 or 7 r - 4 = 24

r = - \frac{20}{7} or r = 4

∣ 3 p - 8 ∣ - 10 = - 3

- 2 ∣ - x ∣ + 5 = 8

∣ 3 - 6 x ∣ = 39

so l v e f or x, g = ∣ x ∣ + k

- 16 x = 2 ∣ 6 x - 2 ∣