If 3x - 1 - 9 - 34- find x-

nbsp; 3^x 1 = 9 × 3^4 = gt;3^x 1 = 3^2 × 3^4 = gt;3^x 1 = 3^6 = gt;x 1=6 = gt;x=7 ...

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Formation of Algebraic Expressions

If 3x - 1 =...

Question

If $3^{x - 1} = 9 \times 3^{4}$ , find x.

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Solution

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3^{x - 1} = 9 \times 3^{4}

x

3 (4 - \frac{2}{8} x) - 12 (1 + 3 x) = 9 - \frac{8 x}{4}

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9^{- 2} = {(\frac{1}{3})}^{x}

3^{x + 2} - 9^{- 1 / x} > 0

x .

(3 x + 1, 2 y - 7) = (9, - 9)

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