$556244\mathrm{.}3289626.$qx$3$zqy$7$

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Find the general solution to the given system.

$4x_1-8x_2=20$

$3x_3=6$

$\backslash$rceil

Enter $1-2x_3$ as: $1-2{?}_3$

$($Signs should be simplified, so answers

such as $1+-2$ x$\_3$ will not be accepted$)$