Question

x+y=6 2x+y=4 resultadooooooooooooooooooooooooooooooooooooooooooooo

Answer 1

x + y = 6
2x + y = 4
==========
y = 6 - x

2x + y = 4
2x + 6 - x = 4
2x - x = 4 - 6
x = -2

y = 6 - x
y = 6 - (-2)
y = 6 + 2
y = 8


S={ -2, 8 }

Answer 2

2x+y=4
2x+6-x=4
2×-×=4-6
×=-2

y=6-×
y=6-(-2)
y=6+2
y=8

s=(-2,8)