37028+х=43028
х=43028-37028
х=6000
37028+6000=43028
43028=43028
24900-z=8000
z=24900-8000
z=16900
24900-16900=8000
8000=8000
y-18376=35000
y=35000+18376
y=53376
53376-18376=35000
35000=35000
5285-(p+285)=1700
p+285=5285-1700
p+285=3585
p=3585-285
p=3300
5285-(3300+285)=1700
5285-3585=1700
1700=1700