1) 75883-(31200+х)=1000-1
75883 - 31200 - х = 999
44683 - х = 999
-х = -43684
х = 43684
Ответ: 43684
2) 75883-(31200+х)=999
(31200+х)=75883-999
31200+х=74884
х=74884-31200
х=43684
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Answers & Comments
1) 75883-(31200+х)=1000-1
75883 - 31200 - х = 999
44683 - х = 999
-х = -43684
х = 43684
Ответ: 43684
2) 75883-(31200+х)=999
(31200+х)=75883-999
31200+х=74884
х=74884-31200
х=43684
Ответ: 43684