1 способ.
(376 - х) + 24 = 123
376 - х = 123 - 24
376 - х = 99
х = 376 - 99
- - - - - - - - - - - -
2 способ.
(376 + 24) - х = 123
400 - х = 123
х = 400 - 123
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Verified answer
1 способ.
(376 - х) + 24 = 123
376 - х = 123 - 24
376 - х = 99
х = 376 - 99
х = 277
- - - - - - - - - - - -
2 способ.
(376 - х) + 24 = 123
(376 + 24) - х = 123
400 - х = 123
х = 400 - 123
х = 277