Question

sistema:

x-3y=5
2x+4y=0

Answer 1

{x-3y=5
{2x+4y=0

x=5+3y
2 (5+3y)+4y=0
10+6y+4y=0
10y=-10
y=-10/10
y= -1
x=5+3.(-1)
x=5-3
x=2

(2,-1)