Предмет: Математика, автор: tanushkash05

решите систему уравнений
х+2у=4
3х-4у=7
Помогите Пожалуйста

Ответы

Автор ответа: IrkaShevko
5
{2x+4y = 8
{3x - 4y = 7

{y = (4-x)/2
{5x = 15

{x = 3
{y = (4-3)/2 = 0,5

Ответ: (3; 0,5)
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