Предмет: Математика, автор: plyfor

Света купила 6 карандашей по цене х руб. за карандаш, а Таня купила 3 ручки по цене в 1,3 раза выше, чем цена за карандаш. После этого у девочек осталось 48,7 руб. Какая сумма денег была у девочек первоначально?
Составь выражение и упрости его.

gumbet: 6х+3*1,3х+48,7=6х+3,9х+48,7=9,9х+48,7

gumbet: если дано х, то можно и альше вычислить

Ответы

Автор ответа: PaySee

Ответ:

48,7 + 9,9х руб

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