Ответ:
{2х+у=3,
{2х+у=3,{3х-5у=37
{у=-2х+3
{у=-2х+3{3х-5у=37
{3х-5(-2х+3)=37
{3х+10х-15=37
{13х=52
{х=4
{2×4+у=3
{у=-5
3×4-5×(-5)=37
37=37
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
{2х+у=3,
{2х+у=3,{3х-5у=37
{у=-2х+3
{у=-2х+3{3х-5у=37
{у=-2х+3
{3х-5(-2х+3)=37
{у=-2х+3
{3х+10х-15=37
{у=-2х+3
{13х=52
{у=-2х+3
{х=4
{2×4+у=3
{х=4
{у=-5
{х=4
ПРОВЕРКА
3×4-5×(-5)=37
37=37
ОТВЕТ: (4;-5).