|2x-3|=7

Lösung

∣ 2 x - 3 ∣ = 7

x = - 2 or x = 5

Schritte zur Lösung

∣ 2 x - 3 ∣ = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 x - 3 = - 7 or 2 x - 3 = 7

2 x - 3 = - 7 or 2 x - 3 = 7

x = - 2 or x = 5

14 = 11 + \frac{w}{8} \cdot 6

5 - 2 x^{2} = - 15

\frac{25 x ^{2} - 81}{x ^{2} - 36} \leq 0

s im pl i f y 3 \cdot 8

3 z^{2} + 12 z - 20 = 5 z