Предмет: Алгебра, автор: nematovaamina0

решите задачу составив уравнение
периметр треугольника к ABC равен 86 см длина стороны AB в 2 раза больше длины стороны BC и на 6 см меньше чем длина стороны AC какова длина каждой стороны треугольника

kirarimomobami7: Сторона AB на 6 см меньше AC, а AB=2x, значит AC=2x+6

kirarimomobami7: С кем не бывает)

Ответы

Автор ответа: kirarimomobami7

1

Пусть BC=x, тогда AB=2x; AC=2x+6
Составим уравнение:
2x+x+2x+6=86
5x=80
x=16см это BC
16*2=32см это AB
32+6=38см это AC
Ответ: 16; 32; 38

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