Place this on stack with algebriac mode:

[2 * x - 3 * y + z = 5, x + y - 2 * z = 0, -x + 2 * y + 3 * z = -3]

run command 'a S x,y,z'

Receive error 'Division by zero: 1'

I enabled Debug on Error but could not find the backtrace

Emacs  : GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2017-09-14, modified by Debian
Package: Calc


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Christopher Howard
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