|7M+11|=3

Lösung

∣ 7 M + 11 ∣ = 3

M = - 2 or M = - \frac{8}{7}

Dezimale

M = - 2, M = - 1.14285 \dots

Schritte zur Lösung

∣ 7 M + 11 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 M + 11 = - 3 or 7 M + 11 = 3

7 M + 11 = - 3 or 7 M + 11 = 3

M = - 2 or M = - \frac{8}{7}

∣ 2 x - 4 ∣ = 4

∣ 2 x - 4 ∣ = 0

∣ - 1 + 5 x ∣ = 11

∣ 4 x + 1 ∣ = 17

∣ 4 x + 1 ∣ = 16