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Absolute Value Function

If A=x+2, a...

Question

If $A = x + 2,$ and $B = 2 x$ then,find $A + 2 B =$

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Solution

$A + 2 B = x + 2 + 2 (2 x)$
$\Rightarrow A + 2 B = x + 2 + 4 x$
$∴ A + 2 B = 5 x + 2$

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