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Popular >

3^{x+1}-3^x=18

Solution

3^{x + 1} - 3^{x} = 18

Solution

x = 2

Solution steps

3^{x + 1} - 3^{x} = 18

Factor

3^{x + 1} - 3^{x} : 2 \cdot 3^{x}

2 \cdot 3^{x} = 18

Divide both sides by

2

3^{x} = 9

Apply exponent rules

x = 2

Popular Examples

2(3^{4x-5})=7^{2x}

2 (3^{4 x - 5}) = 7^{2 x}

5^{x - 1} = 5^{x} - 5

(\frac{1}{2})^{x} = \frac{1}{32}

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

3^{x} = 60

Frequently Asked Questions (FAQ)

What is the answer to 3^{x+1}-3^x=18 ?
The answer to 3^{x+1}-3^x=18 is x=2
Solve for x: 3^{x+1}-3^x=18
The solution is x=2