Question

{6x + y = 1
{-2x + y = -3​

Answer 1

y=1+6x

-2x+1+6x=-3

-2x+6x=-3 - 1

4x=-4

x=-1

Answer 2

6x + y = 1
(y) = 1 - 6x


-2x + (y) = -3
-2x + 1 - 6x = -3
-8x = -4
x = -4/ -8 simplificando e multiplicando por -1:
x = 1/2

y = 1 - 6x
y = 1 - 6(1/2)
y = 1 - 3
y = -2