Question

If 3²ˣ⁺¹ ÷9 = 27, find x. a)4 b)3 c)2 d)1/3​

Answer 1

Answer:

c) is correct.

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Explanation:

$\frac{ {3}^{2x + 1} }{9} = 27 \\ = > \frac{ {3}^{2x + 1} }{ {3}^{2} } = {3}^{3} \\ = > {3}^{2x + 1 - 2} = {3}^{3} \\ = > 2x - 1 = 3 \\ = > 2x = 4 \\ = > x = 2$