Respuesta :

-x+6=1

Hope this helps if not just comment and i'll help you

choixongdong

3x+y=1

y=6-4x

Substitute  y=6-4x into the first equation 3x+y=1

3x+ 6-4x =1

-x + 6 = 1

-x = - 5

x = 5

y= 6 - 4(5)

y = 6 - 20

y = -14