Answer
$x=26$
Work Step by Step
$\left|\begin{array}{ll}
x+3 & -6\\
x-2 & -4
\end{array}\right|=(x+3)(-4)-(-6)(x-2)$
$=-4x-12+6x-12=2x-24$
$2x-24=28\qquad/+24$
$2x=52\qquad/\div 2$
$x=26$
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