|7-2x|=9

Lösung

∣ 7 - 2 x ∣ = 9

x = - 1 or x = 8

Schritte zur Lösung

∣ 7 - 2 x ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 - 2 x = - 9 or 7 - 2 x = 9

7 - 2 x = - 9 or 7 - 2 x = 9

x = - 1 or x = 8

s im pl i f y (\frac{b ^{2}}{- 2 a ^{4}})^{5}

s im pl i f y 1 - e^{- 1}

s im pl i f y (36 x)^{\frac{1}{2}} (49 x)^{\frac{1}{2}}

3 x + 7 < 13

f a c t or 5 x^{3} - 44 x^{2} + 61 x + 14