Question

{4x+7y=11
{5x-2y=40

помогитеее!!!​

Answer 1

{4х+7у=11. {4х+7у=11

{5х-2у=40. {х=8+2/5у

4(8+2/5у)+7у=11

у=-105/43

х=8+2/5(-105/43)

х=302/43