286+a=965=>a=965-286=>a=679
c-1750=26 036=>c=26 036+1750=>c=27 786
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b+1562=14 960=>b=14 960-1562=>b=13 398
1280-d=996=>d=1280-996=>d=284
f=14 006-5600=8406
2a=178=>a=178:2=>a=89
8•d=286 064=>8d=286064=>d=286064:8=>d=35 758
g=455:5=91
7•b=14 021=>7b=14 021=>b=14 021:7=>b=2003
e:5=2618=>e=2618•5=>e=13 090
123:h=41=>h=123:41=>h=3
c•9=7560=>c=7560:9=>c=840
f:8=14 265=>f=14 265•8=>f=114 120
