Question

5x+y=7 3y+6x=4 методом підстановки​

Answer 1

Ответ:

x = -1, y = 12

Объяснение:

$y = 7 - 5x\\3(7 - 5x) + 6x = 4\\x = -1\\y = 7 - 5x = 7 - 5(-1) = 12$


by Miguel
very low diff