Предмет: Математика, автор: Гарижга

Докажите тождество:
17(-х+2,5)-35(0,9-4х)=93-41(2-3х)
ПОМОГИТЕ ПЛИИИЗ)))

Ответы

Автор ответа: Аноним

17 * ( - X + 2,5) - 35 * ( 0,9 - 4X) = - 17X + 42,5 - 31,5 + 140X = 11 + 123X
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93 - 41 * ( 2 - 3X) = 93 - 82 + 123X = 11 + 123X
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11 + 123X = 11 + 123X
(левая часть равна правой части, что и требовалось доказать)

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