Question

15 = [15 / (15 + a)]

Answer 1

what we have to do in this question??

writ it properly

Answer 2

$15 = \frac{15}{15 + a}$

Or,

$\frac{1}{15 + a} = 1$

Or,

$15 + a = 1$

Or,

$a = - 14$

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