9 680 :(x+219)=86 (X-57): 29=205 (X-72) •9=927

Question

9 680 :(x+219)=86
(X-57): 29=205
(X-72) •9=927

Answer 1

1) 9.680:(х+219)=86
х+219=9.680•86
х+219=832.480 (боже мой)
х=832.480-219
х=832.261
——————————
9.680:(832.261+219)=86

2) (х-57):29=205
х-57=205•29
х-57=5.945
х=57+5.945
х=6.002

3) (х-72)•9=927
х-72=927:9
х-72=103
х=72+103
х=175