Предмет: Математика, автор: izangareev

Сумма двух чисел была равна 1000. Чему станет равна сумма, если первое слагаемое увеличить на 67, а второе слагаемое уменьшить на 39?

Ответы

Автор ответа: AnonimusPro

пусть x - 1 число, а y - 2 число, a - 2 сумма
x+y=1000
(x+67)+(y-39)=a
x+y+28=a
но x+y=1000, значит:
a=1000+28=1028
Ответ: 1028

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