1000-200=800
800+30=830............................................
Х:8=80
х=80*8
<u>х=640
</u>640:8=80
80=80
350030-(4875+5206) *9 = 350030- 10081*9= 350030-90729= 259301
4860-k*62=2442
k*62=4860-2442
k*62=2418
k=2418/62
k=39
4860-39*62=2442
4860-2418=2442