Question

Реши уравнения:56 × x +287 =791 ,(4289 -а)+ 5637=8001

Answer 1

1)56x+287=791
56x=791-287
56x=504
x=504/56
x=9

2) (4289-a)+5637=8001
4289-a+5637=8001
a=1925

Answer 2

56*х+287=791
56*х=791-287
56*х=504
х=504/56
х=9
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проверка
56*9+287=791
791=791



(4289-а)+5637=8001
4289-а=8001-5637
4289-а=2364
а=4289-2364
а=1925
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проверка
(4289-1925)+5637=8001
8001=8001