Question

2x + 5y =-1
4x - 3y = 2
Qual resultado de x e y?

Answer 1

2x+5y=-1 *(3)
4x-3y=2 *(5)

6x+15y=-3
20x-15y=10
-----------------
26x=7
x=7/26
x=0,27

2(7/26)+5y=-1
14/26 +5y=-1
5y=-1 -7/13
5y=-13-7/13
5y=-20/13
y=-20/65
y=-0,31