Question

(c) 3^7 ÷ 3^x = 9 x = .................................................. [2]

Answer 1

$\: \: \: \: \: \: \: {3}^{7} \div {3}^{x} = {9}^{x} \\ = > {3}^{7 - x} = {3}^{2x}$

Equate the powers when bases are same.

$\: \: \: \: \: \: \: 7 - x = 2x \\ = > 3x = 7 \\ = > x = \frac{7}{3}$

Answer 2

Answer:

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Step-by-step explanation:

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