|x-7|=4

Lösung

∣ x - 7 ∣ = 4

x = 3 or x = 11

Schritte zur Lösung

∣ x - 7 ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x - 7 = - 4 or x - 7 = 4

x - 7 = - 4 or x - 7 = 4

x = 3 or x = 11

3 x^{2} + 6 x - 42 = 0

3 (5 x - 4)^{2} + 7 = 61

\frac{2}{3} t - \frac{2 t + 1}{9} > 12

s im pl i f y \frac{24 x ^{3}}{25 y ^{5}} \cdot \frac{15 y ^{2}}{8 x ^{2}}

- 4 = \frac{2}{9} x