Question

$\sqrt{124 + x + 169} = 18$
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Answer 1

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Answer 2

The solution would be x = 31

Step-by-step explanation:

Given expression,

$\sqrt{124+x+169}=18$

$\sqrt{293+x}=18$

$(293+x)^\frac{1}{2}=18$

Squaring both sides,

$((293+x)^\frac{1}{2})^2 = 18^2$

$293+x = 324$   $(\because (a^m)^n=a^{mn})$

$x = 324 - 293$

$\implies x =31$

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