en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

3^{2x-3}=81

Solution

3^{2 x - 3} = 81

Solution

x = \frac{7}{2}

+1

Decimal Notation

x = 3.5

Solution steps

3^{2 x - 3} = 81

Apply exponent rules

2 x - 3 = 4

Solve

2 x - 3 = 4 : x = \frac{7}{2}

x = \frac{7}{2}

Popular Examples

3^{n - 1} = 243

4^{- x - 3} = 8

5^{x^{2} + 2 x} = 1

5*25^{x+2}=125^{2x}

5 \cdot 2 5^{x + 2} = 12 5^{2 x}

7^{5x^2-42x}=10^{125-42x}

7^{5 x^{2} - 42 x} = 1 0^{125 - 42 x}

Frequently Asked Questions (FAQ)

What is the answer to 3^{2x-3}=81 ?
The answer to 3^{2x-3}=81 is x= 7/2
Solve for x: 3^{2x-3}=81
The solution is x= 7/2