Предмет: Математика, автор: Dimkaa24

Решите систему уравнений способом сложения:

1)

{2x+3y=2

{-2x+5y=-18

2)

{3x-5y=23

{2x+3y=-8

Ответы

Автор ответа: алина19999

0

1){8у=-1
{2х+3у
{у=-2
{2х+3*(-2)=2
{у=-2
{2х+(-6)=2
{у=-2
{-2х=4
{у=-2
{х=-2

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