Question

What is the value of n

Answer 1

Hi pupil here's your answer ::

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please see the attached answer

in the third step there is the method to take equalising the powers .
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hope that it helps. . . . . . .

Answer 2

$\frac{2 {}^{n} \times 2 {}^{6} }{ {2}^{ - 3} } = {2}^{18} \\ {2}^{x + 9} = {2}^{18} \\ x + 9 = 18 \\ x = 18 - 9 \\ 9$
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