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Popular >

8*3^{n-1}-21=3

Solution

8 \cdot 3^{n - 1} - 21 = 3

Solution

n = 2

Solution steps

8 \cdot 3^{n - 1} - 21 = 3

Move

21

to the right side

8 \cdot 3^{n - 1} = 24

Divide both sides by

8

3^{n - 1} = 3

Apply exponent rules

n - 1 = 1

Solve

n - 1 = 1 : n = 2

n = 2

Popular Examples

2^{x} = x^{5}

4^x-4^{x-1}=3^{x+1}-3^x

4^{x} - 4^{x - 1} = 3^{x + 1} - 3^{x}

2^{x+1}+2^{x+2}+2^{x+3}=112

2^{x + 1} + 2^{x + 2} + 2^{x + 3} = 112

4^{2x+3}=5^{x-2}

4^{2 x + 3} = 5^{x - 2}

solvefor x,5e^x-9cosx=2 solve for

x, 5 e^{x} - 9 cos x = 2

Frequently Asked Questions (FAQ)

What is the answer to 8*3^{n-1}-21=3 ?
The answer to 8*3^{n-1}-21=3 is n=2
Solve for n: 8*3^{n-1}-21=3
The solution is n=2