12=7^x

Lösung

12 = 7^{x}

x = \frac{ln ( 12 )}{ln ( 7 )}

Dezimale

x = 1.27698 \dots

Schritte zur Lösung

12 = 7^{x}

Wende Exponentenregel an

ln (12) = x ln (7)

Löse

ln (12) = x ln (7) : x = \frac{ln ( 12 )}{ln ( 7 )}

x = \frac{ln ( 12 )}{ln ( 7 )}

(5 x + 11)^{2 x - 1} = (5 x + 11)^{x - 6}

e^{3 x} = 14

so l v e f or x, f = - 2 ((- 6)^{(x + 5)})

e^{3 x} = 22

e^{3 x} = 75