How do you solve the equation $4-absx=2x+1$ ?

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Answer 1 · 2018-06-03T15:22:31

$x=1$

If $x>=0$ then we have
$4-x=2x+1$
so we get
$x=1$
If $x<0$ then we have
$4+x=2x+1$
so
$x=3$
This is impossible, since we have assumed that $x<0$

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