Решите систему уравнения с помощью сложения 8 x + 13 Y

Ответ: х=1 ; у=5.Пошаговое объяснение:{8х+13у-73=0{8х-12у+52=0Умножим (2) на (-1){8х+13у-73=0{-8х+12у-52=0Сложим.25у=125у=125/25=5.х=(73-13*5)/8=8/8=1 Реклама Реклама ys1956 ys1956 Ответ:{8x+13y-73=0; {8x-12y+52=0. => {8x+13y=73; (№1) {8x-12y=-52 (*-1) => 8x+13y=73 + -8x+12y=52 ========== 0+25y=125 25y=125 => y=125/25=5 в (№1) 8x+13*5=73 8x=8 x=1. Реклама Реклама Новые вопросы в Математика мне нужно к обратной задачи краткое условие Помогите пжжжж задание в фоте Помогите пожалуйста Выделите целую часть : 1) 45/13; 2) 356/46 тендеулер жуйесин графиктик тасилмен шешиниз у=х+2 у=2хСРОЧНООО спростити вираз - 7xy2*3x2y3 На клумбе росло 240 ромашек тюльпанов на 150 меньше, а фиалок в 3 раза больше, чем тюльпанов. Сколько фиалок росло на клумбе? можно пж 69 70 71 очень надо Способ 1. Решим задачу, опираясь на смысл поня- тия дроби. Найдём пятую часть от числа 80 000 и умно- жим результат на 2: (80 000 : 5)2 = 32 000 (ueJ. … ). помигите пожалуйста дам 10 баллов если что это дроби 6класс учебник Б.Е.А К.Л.В Самолёт летел до Египта 3 часа со скоростью 900км/ч обратно этот путь составил 4 часа . Какая скорость была у самолёта на обратном пути , если у него … была остановка на 2 часа? Предыдущий Следующий Реклама - это не так уж плохо Реклама - это не так уж плохо Понимаем - вы пришли сюда не за рекламой. Но она помогает нам предоставлять бесплатный доступ к Знаниям. Пожалуйста, внесите наш сайт в список разрешенных. ОК, разблокирую рекламу на Знаниях! Вместе мы знаем больше Этот сайт использует cookies Политика Cookies . Вы можете указать условия хранения и доступ к cookies в своем браузере. 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