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Popular >

81=27^{x+2}

Solution

81 = 2 7^{x + 2}

Solution

x = - \frac{2}{3}

+1

Decimal

x = - 0.66666 \dots

Solution steps

81 = 2 7^{x + 2}

Apply exponent rules

4 = 3 (x + 2)

Solve

4 = 3 (x + 2) : x = - \frac{2}{3}

x = - \frac{2}{3}

Graph

Popular Examples

9=193\times e^{-x(8)}

9 = 193 \times e^{- x (8)}

128\times 16^{2x+1}=8^{3-2x}

128 \times 1 6^{2 x + 1} = 8^{3 - 2 x}

solvefor y,x^x=y^y solve for

y, x^{x} = y^{y}

(\frac{1}{2})^{x} = 128

5e^x-12e^{-x}-11=0

5 e^{x} - 12 e^{- x} - 11 = 0

Frequently Asked Questions (FAQ)

What is the answer to 81=27^{x+2} ?
The answer to 81=27^{x+2} is x=-2/3
Solve for x: 81=27^{x+2}
The solution is x=-2/3