27^x=9^{x-4}

Lösung

2 7^{x} = 9^{x - 4}

x = - 8

Schritte zur Lösung

2 7^{x} = 9^{x - 4}

Wende Exponentenregel an

3 x = 2 (x - 4)

Löse

3 x = 2 (x - 4) : x = - 8

x = - 8

5. 3^{x} + 2. 3^{3} = 63

4 e^{2 x} = 81 - 5 e^{2 x}

210 = 3^{x} - 43

e^{0.2 x} = 21.2

3 \cdot 1 0^{2 y} = 42