|2x+3|=13

Lösung

∣ 2 x + 3 ∣ = 13

x = - 8 or x = 5

Schritte zur Lösung

∣ 2 x + 3 ∣ = 13

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 x + 3 = - 13 or 2 x + 3 = 13

2 x + 3 = - 13 or 2 x + 3 = 13

x = - 8 or x = 5

25 = (x + 1)^{2} + x^{2}

3 x - 4 = 20

- 2 < - z + 1 < 2

s im pl i f y - \frac{2}{7} - (- \frac{1}{5})

- 2 + 3 (\frac{5}{6}) \geq \frac{1}{4}