#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

my $equation = '979x + 87y - 8723z = 274320';
my @parts;
push @parts, "[$1 $2]" while $equation =~ /(.*?)([xyz])\s*/gi;
say for @parts;


##</code><code>##

my @parts = $equation =~ /(.*?)([xyz])\s*/gi;
say for @parts;


##</code><code>##

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,