|4x-7|=8

Lösung

∣ 4 x - 7 ∣ = 8

x = - \frac{1}{4} or x = \frac{15}{4}

Dezimale

x = - 0.25, x = 3.75

Schritte zur Lösung

∣ 4 x - 7 ∣ = 8

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

4 x - 7 = - 8 or 4 x - 7 = 8

4 x - 7 = - 8 or 4 x - 7 = 8

x = - \frac{1}{4} or x = \frac{15}{4}

x + 8 = - 2

s im pl i f y \frac{3}{2 - 7}

\frac{5.6}{8} \cdot (x + 8) = \frac{6}{12} \cdot (x + 12)

7 (m + 9) - 18 = 59

8 x^{2} + 22 x = 21