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igudzeva
@igudzeva
August 2022
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Как правильно решить уравнение 4(9+7х)+21=393
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fiofionina
Verified answer
Решение:
4(9+7х)+21=393
36+28х+21=393
28х=393-36-21
28х=336
х=336/28
х=12
Ответ: х=12
2 votes
Thanks 6
BekoMBR
36+28x+21=393
28x=393-36-21
28x=336
x=336/28
x=12
2 votes
Thanks 3
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Answers & Comments
Verified answer
Решение:4(9+7х)+21=393
36+28х+21=393
28х=393-36-21
28х=336
х=336/28
х=12
Ответ: х=12
28x=393-36-21
28x=336
x=336/28
x=12