|4x-7|=39

Lösung

∣ 4 x - 7 ∣ = 39

x = - 8 or x = \frac{23}{2}

Dezimale

x = - 8, x = 11.5

Schritte zur Lösung

∣ 4 x - 7 ∣ = 39

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

4 x - 7 = - 39 or 4 x - 7 = 39

4 x - 7 = - 39 or 4 x - 7 = 39

x = - 8 or x = \frac{23}{2}

∣ 4 x - 7 ∣ = 19

∣ 4 x - 8 ∣ + 1 = 5 x^{5} x

- 20 = - ∣ q ∣

∣ d - 1 ∣ = 5

∣ b + 17 ∣ = 40