Question

{× -3y=5
{2x +4y=0

?

Answer 1

Vamos là.

x - 3y = 5

2x + 4y = 0

x - 3y = 5

x + 2y = 0

-3y - 2y = 5

-5y = 5

y = -1

x + 3 = 5

x = 2

S = (2, -1)