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Автор - rita58

Найдите координаты точки пересечения графиков функций y=3x+5 и y=7x-8

Ответ

Проверено экспертом

Автор - nyushiki
3x +5 = 7x - 8
-4x = -13
x = 3.25

y= 3 * 3.25 +5 
y = 9.75 + 5
y= 14.75

(3.25; 14.75)

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