Предмет: Алгебра, автор: mashakosel

ПОМОГИТЕ ПОЖАЛУЙСТА! ДАЮ 20б
Выясни, имеет ли система решение, и если да, то сколько:
а) {7х-2у=5
{-14х+4у=10
б) {х-3у=-4
{2х-6у=-8
СКОБКИ СЛИТНО!!

Ответы

Автор ответа: DmitryPavlov12

Ответ:

Не имеет

Объяснение:

Автор ответа: Hanyki

Обе системы имеют бесконечное число решений, в первом случае первое уравнение надо домножить на минус один и тогда получатся одинаковые уравнения, а во втором случае первое уравнение умножить на два

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ПОМОГИТЕ ПОЖАЛУЙСТА! ДАЮ 20б Выясни, имеет ли система решение, и если да, то сколько: а) {7х-2у=5 {-14х+4у=10 б) {х-3у=-4 {2х-6у=-8 СКОБКИ СЛИТНО!!

Ответы

ПОМОГИТЕ ПОЖАЛУЙСТА! ДАЮ 20б
Выясни, имеет ли система решение, и если да, то сколько:
а) {7х-2у=5
{-14х+4у=10
б) {х-3у=-4
{2х-6у=-8
СКОБКИ СЛИТНО!!