Автор - kamilla555556

(х+х-4)*2=28; (3х+х)*2=24.​

Ответ

Автор - VоЛk

(x + x - 4) times 2 = 28 \ 2 times x - 4 = 28 div 2 \ 2 times x - 4 = 14 \ 2 times x = 14 + 4 \ 2 times x = 18 \ x = 18 div 2 \ x = 9

(3x + x) times 2 = 24 \ (3x + x) = 24 div 2 \ 4 times x = 12 \ x = 12 div 4 \ x  = 3

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