Вопрос школьника по предмету Алгебра
Решите графически систему уравнений.
{x — y = -3,
{x + 3y = 1.
Помогите, пожалуйста!
Ответ учителя по предмету Алгебра
Ответ:
(-2;1)
Объяснение:
x=-3+y;
х+3у=1.
-3+у+3у=1
у=1
х=-3+1
х=-2
(х;у)= (-2;1)
Решите графически систему уравнений.
{x — y = -3,
{x + 3y = 1.
Помогите, пожалуйста!
Ответ:
(-2;1)
Объяснение:
x=-3+y;
х+3у=1.
-3+у+3у=1
у=1
х=-3+1
х=-2
(х;у)= (-2;1)
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пожалуйста