Answer :

eu99li

y=-5x+1

y=-4

=> -4=-5x+1      /+4

   0=-5x+5   /+5x

5x=5      /:5

x=1 

[tex]y=-5x+1\\ y=-4\\\\\ -4=-5x+1\\ -5x=-5\\ x=1\\\\ \boxed{(x,y)=(1,-4)}[/tex]