|3x+7-5x|=4

Lösung

∣ 3 x + 7 - 5 x ∣ = 4

x = \frac{3}{2} or x = \frac{11}{2}

Dezimale

x = 1.5, x = 5.5

Schritte zur Lösung

∣ 3 x + 7 - 5 x ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

3 x + 7 - 5 x = - 4 or 3 x + 7 - 5 x = 4

3 x + 7 - 5 x = - 4 or 3 x + 7 - 5 x = 4

x = \frac{3}{2} or x = \frac{11}{2}

- 5 - 2 ∣ x - 2 ∣ = 6

∣ 1 - z ∣ = 1, ∣ z ∣ = 1

∣ - 5 (x - 3) ∣ = 30

∣ 7 x + 4 ∣ = x + 2

1 ∣ x + 2 ∣ = 2 (3 - x)