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Автор - милка1234567890

Решите уравнение и выполните проверку.

а)(х-87)-27=36 б) 87-(41+у)=22придурок

Ответ

Автор - Cady
а)
 (x-87)-27=36
 (x-87)=36+27
 (х-87)=63
 х=63+87
 х=150
__________________

(150-87)-27=36


б)
 87-(41+у)=22
 (41+y)=87-22
 (41+у)=65
 у=65-41
 у=24
__________________


87-(41+24)=22

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